commit 46892d1110f8be5566ead2121c216ee7f317fb3e
Author: Rasmus Andersson <rasmus@notion.se>
Date:   Sun Dec 8 20:12:33 2019 -0800

    initial commit

diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+/_*
+**/.DS_Store
+/build
+/node_modules
+*.sublime*
diff --git a/LICENSE b/LICENSE
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+++ b/LICENSE
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+Copyright (c) 2019 Rasmus Andersson <https://rsms.me/>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/README.md b/README.md
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+++ b/README.md
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+# markdown-wasm
+
+Very fast Markdown parser & HTML renderer implemented in WebAssembly
+
+- Zero dependencies
+- Portable
+- Simple API
+- Fast and efficient
+
+Based on [md4c](http://github.com/mity/md4c)
+
+
+## Examples
+
+In Nodejs
+
+```js
+const markdown = require("./dist/markdown.node.js")
+console.log(markdown.parse("# hello\n*world*"))
+```
+
+ES module
+
+```js
+import * as markdown from "./dist/markdown.es"
+console.log(markdown.parse("# hello\n*world*"))
+```
+
+Separately loded wasm module (useful in web browsers)
+
+```js
+require("./dist/markdown").ready.then(markdown => {
+  console.log(markdown.parse("# hello\n*world*"))
+})
+```
+
+
+## API
+
+```ts
+/**
+ * parse reads markdown source at s and converts it to HTML.
+ * When output is a byte array, it will be a reference.
+ */
+export function parse(s :Source, o? :ParseOptions & { asMemoryView? :never|false }) :string
+export function parse(s :Source, o? :ParseOptions & { asMemoryView :true }) :Uint8Array
+
+/** Markdown source code can be provided as a JavaScript string or UTF8 encoded data */
+type Source = string|ArrayLike<number>
+
+/** Options for the parse function */
+export interface ParseOptions {
+  /**
+   * Customize parsing.
+   * If not provided, the following flags are used, equating to github-style parsing:
+   *   COLLAPSE_WHITESPACE
+   *   PERMISSIVE_ATX_HEADERS
+   *   PERMISSIVE_URL_AUTO_LINKS
+   *   STRIKETHROUGH
+   *   TABLES
+   *   TASK_LISTS
+   */
+  parseFlags? :ParseFlags
+
+  /**
+   * asMemoryView=true causes parse() to return a view of heap memory as a Uint8Array,
+   * instead of a string.
+   *
+   * The returned Uint8Array is only valid until the next call to parse().
+   * If you need to keep the returned data around, call Uint8Array.slice() to make a copy,
+   * as each call to parse() uses the same underlying memory.
+   *
+   * This only provides a performance benefit when you never need to convert the output
+   * to a string. In most cases you're better off leaving this unset or false.
+   */
+  asMemoryView? :boolean
+}
+
+/** Flags that customize Markdown parsing */
+export enum ParseFlags {
+  /** In TEXT, collapse non-trivial whitespace into single ' ' */ COLLAPSE_WHITESPACE,
+  /** Enable $ and $$ containing LaTeX equations. */              LATEX_MATH_SPANS,
+  /** Disable raw HTML blocks. */                                 NO_HTML_BLOCKS,
+  /** Disable raw HTML (inline). */                               NO_HTML_SPANS,
+  /** Disable indented code blocks. (Only fenced code works.) */  NO_INDENTED_CODE_BLOCKS,
+  /** Do not require space in ATX headers ( ###header ) */        PERMISSIVE_ATX_HEADERS,
+  /** Recognize e-mails as links even without <...> */            PERMISSIVE_EMAIL_AUTO_LINKS,
+  /** Recognize URLs as links even without <...> */               PERMISSIVE_URL_AUTO_LINKS,
+  /** Enable WWW autolinks (without proto; just 'www.') */        PERMISSIVE_WWW_AUTOLINKS,
+  /** Enable strikethrough extension. */                          STRIKETHROUGH,
+  /** Enable tables extension. */                                 TABLES,
+  /** Enable task list extension. */                              TASK_LISTS,
+  /** Enable wiki links extension. */                             WIKI_LINKS,
+
+  /** Default flags */                                            DEFAULT,
+  /** Shorthand for NO_HTML_BLOCKS | NO_HTML_SPANS */             NO_HTML,
+}
+```
+
+See `markdown.d.ts`
+
+
+## Building from source
+
+```
+npm install
+npx wasmc
+```
+
+Build debug version of markdown-es into ./build/debug and watch source files:
+
+```
+npx wasmc -g -w
+```
diff --git a/dist/markdown.es.js b/dist/markdown.es.js
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+++ b/dist/markdown.es.js
@@ -0,0 +1,3 @@
+const WASM_DATA = require("zlib").brotliDecompressSync(Buffer.from("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diff --git a/dist/markdown.node.js b/dist/markdown.node.js
new file mode 100644
index 0000000..90c67ca
--- /dev/null
+++ b/dist/markdown.node.js
@@ -0,0 +1,4 @@
+(function(exports){"use strict";
+const WASM_DATA = require("zlib").brotliDecompressSync(Buffer.from("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diff --git a/dist/markdown.wasm b/dist/markdown.wasm
new file mode 100644
index 0000000..18024ba
Binary files /dev/null and b/dist/markdown.wasm differ
diff --git a/docs/index.html b/docs/index.html
new file mode 100644
index 0000000..dbf0627
--- /dev/null
+++ b/docs/index.html
@@ -0,0 +1,252 @@
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <title>markdown-wasm demo</title>
+  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <link rel="stylesheet" href="https://rsms.me/raster/raster.css?v=8">
+  <script type="text/javascript" src="markdown.js"></script>
+  <style type="text/css">
+
+:root {
+  --fontSize: 14px;
+}
+
+c.label { font-weight:500; letter-spacing:0; color:#999; }
+
+c.input, c.output {
+  max-width:50vw;
+}
+
+c.textarea {
+  display: flex;
+  justify-content: stretch;
+}
+c.textarea textarea {
+  flex: 1 1 auto;
+  min-height: 50vh;
+  border: 2px solid black;
+  border-radius: 3px;
+  padding: 1rem;
+  font-size: 14px;
+}
+c.textarea textarea:focus {
+  outline: none;
+  border-color: var(--blue);
+}
+
+blockquote {
+  padding-left: var(--lineHeight);
+  border-left: 2px solid #ccc;
+}
+
+h1 > a.anchor,
+h2 > a.anchor,
+h3 > a.anchor,
+h4 > a.anchor,
+h5 > a.anchor,
+h6 > a.anchor {
+  display: inline-block;
+  float: left;
+  height: 1.2em;
+  width: 1em;
+  margin-left: -1em;
+  position: relative;
+  outline: none;
+}
+/*.anchor:target { background: yellow; }*/
+h1 > a.anchor:before,
+h2 > a.anchor:before,
+h3 > a.anchor:before,
+h4 > a.anchor:before,
+h5 > a.anchor:before,
+h6 > a.anchor:before {
+  visibility: hidden;
+  position: absolute;
+  opacity: 0.2;
+  right:0;
+  top:0;
+  width:  1em;
+  font-weight:300;
+  line-height: inherit;
+  content: ""; /* U+E08F */
+  text-align: center;
+}
+h1 > a.anchor:hover:before,
+h2 > a.anchor:hover:before,
+h3 > a.anchor:hover:before,
+h4 > a.anchor:hover:before,
+h5 > a.anchor:hover:before,
+h6 > a.anchor:hover:before {
+  visibility: visible;
+  opacity:0.8;
+}
+h1 > a.anchor:focus:before,
+h2 > a.anchor:focus:before,
+h3 > a.anchor:focus:before,
+h4 > a.anchor:focus:before,
+h5 > a.anchor:focus:before,
+h6 > a.anchor:focus:before,
+h1:hover .anchor:before,
+h2:hover .anchor:before,
+h3:hover .anchor:before,
+h4:hover .anchor:before,
+h5:hover .anchor:before,
+h6:hover .anchor:before {
+  visibility: visible;
+}
+
+  </style>
+</head>
+<body>
+  <grid columns=2 class=_debug>
+    <c><h1>Markdown-wasm demo</h1></c>
+    <c>
+      <p>
+        Fast Markdown parser and HTML renderer implemented in WebAssembly.
+        <a href="https://github.com/rsms/markdown-wasm">Learn more &amp; download on GitHub</a>
+      </p>
+    </c>
+
+    <c class=label>Type some Markdown here</c>
+    <c class=label>HTML output from markdown-wasm</c>
+
+    <c class="input textarea"><textarea class="code" id="markdown-input"># Example
+
+A third of the distance across the Beach, the meadow ends and sand begins. This slopes gradually up for another third of the distance, to the foot of the sand hills, which seem tumbled into their places by some mighty power, sometimes three tiers of them deep, sometimes two, _and sometimes only one._ A third of the distance across the Beach, the meadow ends and sand begins.
+
+The outline of this inner shore is most irregular, curving and bending in and out and back upon itself, making coves and points and creeks and channels, and often pushing out in flats with not water enough on them at low tide to wet your ankles.
+
+## Subtitle
+
+This is another fine paragraph
+
+### Smaller subtitle
+
+This is a paragraph `with` ~style~ *italic* _italic_ **bold** __bold__
+
+![image](https://rsms.me/raster/examples/image1.jpg)
+
+*Hello [link](https://rsms.me/) lol*
+
+Hello [*link*](https://rsms.me/) lol "cat"
+
+Hello from *[link](https://rsms.me/)* to __everyone__ `reading this`
+
+Here's an [**important** anchor link](#example).
+
+line 1
+line 2
+
+Code & Poetry
+-------------
+
+    You can also indent
+    blocks to display
+    code or poetry.
+
+    Indented code/poetry blocks
+    can be hard-wrapped.
+
+**Or, wrap your code in three backticks:**
+
+```js
+function codeBlocks() {
+  return "Can be inserted"
+}
+```
+
+
+### Embedded HTML
+
+With default settings, markdown-wasm allows embedded HTML.
+
+> It has been disabled in this demo for safety reasons, by means of setting `ParseFlags.NO_HTML`.
+> Not setting the `NO_HTML` flag allows embedding HTML like this:
+
+&lt;input type=“text” value=“type”&gt;&lt;/input&gt;
+
+
+### Block Quotes
+
+&gt; You can insert quotes by
+&gt; preceeding each line with `&gt;`.
+&gt;
+&gt; Blockquotes can also contain line
+&gt; breaks.
+
+
+## Lists
+
+### Unordered lists
+
+- Unordered
+- Lists
+- Hello
+
+### Ordered lists
+
+1. Ordered
+2. Lists
+4. Numbers are ignored
+1. Ordered
+
+121) Ordered lists can start
+122) with any number and
+123) use . as well as ) as a separator.
+
+### Task lists
+
+- [ ] Task 1
+- [x] Task 2
+- [ ] Task 3
+- Regular list item
+
+## Tables
+
+| Column 1 | Column 2 | Column 3 | Column 4
+|----------|:---------|:--------:|---------:
+| default | left | center | right
+
+### Table of image file types
+
+| Header                    | Mime type    | Extensions | Description
+|---------------------------|--------------|------------|-------------
+| `89 50 4E 47 0D 0A 1A 0A` | image/png    | png        | PNG image
+| `47 49 46 38 39 61`       | image/gif    | gif        | GIF image
+| `FF D8 FF`                | image/jpeg   | jpg jpeg   | JPEG image
+| `4D 4D 00 2B`             | image/tiff   | tif tiff   | TIFF image
+| `42 4D`                   | image/bmp    | bmp        | Bitmap image
+| `00 00 01 00`             | image/x-icon | ico        | Icon image
+
+
+</textarea></c>
+    <c class="output" id="html-output">
+      <div title="Loading markdown module...">•••</div>
+    </c>
+  </grid>
+
+<script type="text/javascript">
+// await the loading of the web assembly module
+window["markdown"].ready.then(function(markdown){
+
+const inputEl = document.getElementById("markdown-input")
+const outputEl = document.getElementById("html-output")
+
+function update() {
+  let source = inputEl.value
+  let html = markdown.parse(source, {
+    parseFlags: markdown.ParseFlags.DEFAULT | markdown.ParseFlags.NO_HTML,
+  })
+  outputEl.innerHTML = html
+}
+
+inputEl.addEventListener("input", update)
+update()
+
+console.log({markdown})
+
+})</script>
+</body>
+</html>
diff --git a/docs/markdown.js b/docs/markdown.js
new file mode 100644
index 0000000..f223dc9
--- /dev/null
+++ b/docs/markdown.js
@@ -0,0 +1,4 @@
+(function(exports){"use strict";
+
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diff --git a/docs/markdown.wasm b/docs/markdown.wasm
new file mode 100644
index 0000000..18024ba
Binary files /dev/null and b/docs/markdown.wasm differ
diff --git a/example/example.html b/example/example.html
new file mode 100644
index 0000000..d1bbf32
--- /dev/null
+++ b/example/example.html
@@ -0,0 +1,81 @@
+<h1><a id="h1" class="anchor" aria-hidden="true" href="#h1"></a>H1</h1>
+<p>This is a paragraph</p>
+<h2><a id="h2" class="anchor" aria-hidden="true" href="#h2"></a>H2</h2>
+<p>This is a paragraph</p>
+<h2><a id="another" class="anchor" aria-hidden="true" href="#another"></a>Another</h2>
+<p>This is a paragraph with style <em>italic</em> <em>italic</em> <b>bold</b> <b>bold</b></p>
+<p><img src="https://rsms.me/image.png" alt="image">
+<img src="https://rsms.me/image.png?without-alt" alt=""></p>
+<p><em>Hello <a href="https://rsms.me/">link</a> lol</em></p>
+<p>Hello <a href="https://rsms.me/"><em>link</em></a> lol &quot;cat&quot;</p>
+<p>Hello from <em><a href="https://rsms.me/">link</a></em> to <b>everyone</b> <code>reading this</code></p>
+<p>Here's an <a href="#example"><b>important</b> anchor link</a>.</p>
+<p>line 1
+line 2</p>
+<h2><a id="code-poetry" class="anchor" aria-hidden="true" href="#code-poetry"></a>Code &amp; Poetry</h2>
+<pre><code>You can also indent
+blocks to display
+code or poetry.
+
+Indented code/poetry blocks
+can be hard-wrapped.
+</code></pre>
+<p><b>Or, wrap your code in three backticks:</b></p>
+<pre><code class="language-js">function codeBlocks() {
+  return &quot;Can be inserted&quot;
+}
+</code></pre>
+<h3><a id="block-quotes" class="anchor" aria-hidden="true" href="#block-quotes"></a>Block Quotes</h3>
+<blockquote>
+<p>You can insert quotes by
+preceeding each line with <code>&gt;</code>.</p>
+<p>Blockquotes can also contain line
+breaks.</p>
+</blockquote>
+<h2><a id="lists" class="anchor" aria-hidden="true" href="#lists"></a>Lists</h2>
+<ul>
+<li>Unordered</li>
+</ul>
+<ul>
+<li>Lists</li>
+</ul>
+<ul>
+<li>Of mixed type</li>
+</ul>
+<ol>
+<li>Ordered</li>
+<li>Lists</li>
+<li>Numbers are ignored</li>
+</ol>
+<ol start="121">
+<li>Ordered lists can start</li>
+<li>with any number and</li>
+<li>use . as well as ) as a separator.</li>
+</ol>
+<ul>
+<li class="task-list-item"><input type="checkbox" disabled>Task 1</li>
+<li class="task-list-item"><input type="checkbox" disabled checked>Task 2</li>
+<li class="task-list-item"><input type="checkbox" disabled>Task 3</li>
+</ul>
+<h2><a id="tables" class="anchor" aria-hidden="true" href="#tables"></a>Tables</h2>
+<table>
+<thead>
+<tr>
+<th>Column 1</th>
+<th align="left">Column 2</th>
+<th align="center">Column 3</th>
+<th align="right">Column 4</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>default</td>
+<td align="left">left</td>
+<td align="center">center</td>
+<td align="right">right</td>
+</tr>
+</tbody>
+</table>
+<h2><a id="anot-her" class="anchor" aria-hidden="true" href="#anot-her"></a>Anöt######her!</h2>
+<h2><a id="anot-her" class="anchor" aria-hidden="true" href="#anot-her"></a>?!Anöt//her!!</h2>
+<h2><a id="" class="anchor" aria-hidden="true" href="#"></a>?!!</h2>
diff --git a/example/example.js b/example/example.js
new file mode 100644
index 0000000..cd84ad9
--- /dev/null
+++ b/example/example.js
@@ -0,0 +1,24 @@
+const RELEASE = process.argv.includes("-release")
+
+const fs = require("fs")
+const md = RELEASE ? require("../build/release/md.js") : require("../build/debug/md.js")
+
+const source = fs.readFileSync(__dirname + "/example.md")
+const outbuf = md.parse(source, { asMemoryView: true })
+const outfile = __dirname + "/example.html"
+console.log("write", outfile)
+fs.writeFileSync(outfile, outbuf)
+
+console.log(fs.readFileSync(outfile, "utf8"))
+
+// mini benchmark
+if (RELEASE) {
+  console.log("benchmark start")
+  const timeStart = Date.now()
+  const iterations = 10000
+  for (let i = 0; i < iterations; i++) {
+    global["dont-optimize-away"] = md.parse(source, { asMemoryView: true })
+  }
+  const timeSpent = Date.now() - timeStart
+  console.log(`benchmark end -- avg parse time: ${(timeSpent / iterations).toFixed(2)}ms`)
+}
diff --git a/example/example.md b/example/example.md
new file mode 100644
index 0000000..5d5ce8d
--- /dev/null
+++ b/example/example.md
@@ -0,0 +1,84 @@
+# H1
+
+This is a paragraph
+
+## H2
+
+This is a paragraph
+
+## Another
+
+This is a paragraph with style *italic* _italic_ **bold** __bold__
+
+![image](https://rsms.me/raster/examples/image1.jpg)
+![](https://rsms.me/image.png?without-alt)
+
+*Hello [link](https://rsms.me/) lol*
+
+Hello [*link*](https://rsms.me/) lol "cat"
+
+Hello from *[link](https://rsms.me/)* to __everyone__ `reading this`
+
+Here's an [**important** anchor link](#example).
+
+line 1
+line 2
+
+Code & Poetry
+-------------
+
+    You can also indent
+    blocks to display
+    code or poetry.
+
+    Indented code/poetry blocks
+    can be hard-wrapped.
+
+**Or, wrap your code in three backticks:**
+
+```js
+function codeBlocks() {
+  return "Can be inserted"
+}
+```
+
+
+### Block Quotes
+
+> You can insert quotes by
+> preceeding each line with `>`.
+>
+> Blockquotes can also contain line
+> breaks.
+
+
+## Lists
+
+- Unordered
+* Lists
++ Of mixed type
+
+1. Ordered
+2. Lists
+4. Numbers are ignored
+
+121) Ordered lists can start
+122) with any number and
+123) use . as well as ) as a separator.
+
+- [ ] Task 1
+- [x] Task 2
+- [ ] Task 3
+
+## Tables
+
+| Column 1 | Column 2 | Column 3 | Column 4 |
+|----------|:---------|:--------:|---------:|
+| default  | left     | center   | right    |
+
+
+## Anöt######her!
+
+## ?!Anöt//her!!
+
+## ?!!
diff --git a/markdown.d.ts b/markdown.d.ts
new file mode 100644
index 0000000..3756265
--- /dev/null
+++ b/markdown.d.ts
@@ -0,0 +1,57 @@
+/**
+ * parse reads markdown source at s and converts it to HTML.
+ * When output is a byte array, it will be a reference.
+ */
+export function parse(s :Source, o? :ParseOptions & { asMemoryView? :never|false }) :string
+export function parse(s :Source, o? :ParseOptions & { asMemoryView :true }) :Uint8Array
+
+/** Markdown source code can be provided as a JavaScript string or UTF8 encoded data */
+type Source = string|ArrayLike<number>
+
+/** Options for the parse function */
+export interface ParseOptions {
+  /**
+   * Customize parsing.
+   * If not provided, the following flags are used, equating to github-style parsing:
+   *   COLLAPSE_WHITESPACE
+   *   PERMISSIVE_ATX_HEADERS
+   *   PERMISSIVE_URL_AUTO_LINKS
+   *   STRIKETHROUGH
+   *   TABLES
+   *   TASK_LISTS
+   */
+  parseFlags? :ParseFlags
+
+  /**
+   * asMemoryView=true causes parse() to return a view of heap memory as a Uint8Array,
+   * instead of a string.
+   *
+   * The returned Uint8Array is only valid until the next call to parse().
+   * If you need to keep the returned data around, call Uint8Array.slice() to make a copy,
+   * as each call to parse() uses the same underlying memory.
+   *
+   * This only provides a performance benefit when you never need to convert the output
+   * to a string. In most cases you're better off leaving this unset or false.
+   */
+  asMemoryView? :boolean
+}
+
+/** Flags that customize Markdown parsing */
+export enum ParseFlags {
+  /** In TEXT, collapse non-trivial whitespace into single ' ' */ COLLAPSE_WHITESPACE,
+  /** Enable $ and $$ containing LaTeX equations. */              LATEX_MATH_SPANS,
+  /** Disable raw HTML blocks. */                                 NO_HTML_BLOCKS,
+  /** Disable raw HTML (inline). */                               NO_HTML_SPANS,
+  /** Disable indented code blocks. (Only fenced code works.) */  NO_INDENTED_CODE_BLOCKS,
+  /** Do not require space in ATX headers ( ###header ) */        PERMISSIVE_ATX_HEADERS,
+  /** Recognize e-mails as links even without <...> */            PERMISSIVE_EMAIL_AUTO_LINKS,
+  /** Recognize URLs as links even without <...> */               PERMISSIVE_URL_AUTO_LINKS,
+  /** Enable WWW autolinks (without proto; just 'www.') */        PERMISSIVE_WWW_AUTOLINKS,
+  /** Enable strikethrough extension. */                          STRIKETHROUGH,
+  /** Enable tables extension. */                                 TABLES,
+  /** Enable task list extension. */                              TASK_LISTS,
+  /** Enable wiki links extension. */                             WIKI_LINKS,
+
+  /** Default flags */                                            DEFAULT,
+  /** Shorthand for NO_HTML_BLOCKS | NO_HTML_SPANS */             NO_HTML,
+}
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..cf4d776
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,14 @@
+{
+  "name": "markdown-wasm",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "wasmc": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/wasmc/-/wasmc-2.0.1.tgz",
+      "integrity": "sha512-EVa1ep5aKKHZpd3+L4s3hah4JO2AId+V13kASKgHvZhAlji0SvyY7WOu/uM8Of0ZTQUdgm6K3zmmPo7G3Pt00w==",
+      "dev": true
+    }
+  }
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..42ac4f9
--- /dev/null
+++ b/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "markdown-wasm",
+  "version": "1.0.0",
+  "description": "Markdown parser and html generator implemented in WebAssembly",
+  "main": "dist/markdown.js",
+  "jsnext:main": "dist/markdown.es.js",
+  "module": "dist/markdown.es.js",
+  "typings": "markdown.d.ts",
+  "homepage": "https://github.com/rsms/markdown-wasm",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/rsms/markdown-wasm.git"
+  },
+  "files": [
+    "dist/markdown.wasm",
+    "dist/markdown.js",
+    "dist/markdown.js.map",
+    "dist/markdown.node.js",
+    "dist/markdown.node.js.map",
+    "dist/markdown.es.js",
+    "dist/markdown.es.js.map",
+    "markdown.d.ts",
+    "README.md",
+    "LICENSE"
+  ],
+  "scripts": {
+    "build": "wasmc"
+  },
+  "author": "Rasmus Andersson <https://rsms.me/>",
+  "license": "MIT",
+  "devDependencies": {
+    "wasmc": "^2.0.1"
+  }
+}
diff --git a/src/common.h b/src/common.h
new file mode 100644
index 0000000..956a552
--- /dev/null
+++ b/src/common.h
@@ -0,0 +1,60 @@
+#pragma once
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+// #include <emscripten/emscripten.h>
+
+#ifdef _MSC_VER
+  #ifndef __cplusplus
+    #define inline __inline
+  #endif
+#endif
+
+typedef uint8_t  bool;
+typedef uint8_t  u8;
+typedef uint16_t u16;
+typedef int16_t  i16;
+typedef uint32_t u32;
+typedef int32_t  i32;
+
+#ifndef TRUE
+  #define TRUE 1
+#endif
+#ifndef FALSE
+  #define FALSE 0
+#endif
+
+#define true TRUE
+#define false FALSE
+
+#ifndef static_assert
+  #if __has_feature(c_static_assert)
+    #define static_assert _Static_assert
+  #else
+    #define static_assert(cond, msg) ((void*)0)
+  #endif
+#endif
+
+#define max(a,b) \
+  ({__typeof__ (a) _a = (a); \
+    __typeof__ (b) _b = (b); \
+    _a > _b ? _a : _b; })
+
+#define min(a,b) \
+  ({__typeof__ (a) _a = (a); \
+     __typeof__ (b) _b = (b); \
+     _a < _b ? _a : _b; })
+
+#define countof(x) \
+  ((sizeof(x)/sizeof(0[x])) / ((size_t)(!(sizeof(x) % sizeof(0[x])))))
+
+#ifndef DEBUG
+  #define DEBUG 0
+#endif
+#if DEBUG
+#include <stdio.h>
+  #define dlog(...)  printf(__VA_ARGS__)
+#else
+  #define dlog(...)
+#endif /* DEBUG > 0 */
diff --git a/src/fmt_html.c b/src/fmt_html.c
new file mode 100644
index 0000000..7cb3072
--- /dev/null
+++ b/src/fmt_html.c
@@ -0,0 +1,429 @@
+/*
+ * md4c modified for mdjs.
+ * Original source code is licensed as follows:
+ *
+ * Copyright (c) 2016-2019 Martin Mitas
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <string.h>
+#include <ctype.h>
+
+#include "common.h"
+#include "fmt_html.h"
+#include "md4c.h"
+
+typedef struct HtmlRenderer_st {
+  WBuf* outbuf;
+  int   imgnest;
+  int   addanchor;
+} HtmlRenderer;
+
+
+static char htmlEscapeMap[256] = {
+        /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
+/* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // <CTRL> ...
+/* 0x10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // <CTRL> ...
+/* 0x20 */ 0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,  //   ! " # $ % & ' ( ) * + , - . /
+/* 0x30 */ 0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,  // 0 1 2 3 4 5 6 7 8 9 : ; < = > ?
+/* 0x40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // @ A B C D E F G H I J K L M N O
+/* 0x50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // P Q R S T U V W X Y Z [ \ ] ^ _
+/* 0x60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // ` a b c d e f g h i j k l m n o
+/* 0x70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // p q r s t u v w x y z { | } ~ <DEL>
+/* 0x80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // <CTRL> ...
+/* 0x90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // <CTRL> ...
+/* 0xA0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // <NBSP> ¡ ¢ £ ¤ ¥ ¦ § ¨ © ª « ¬ <SOFTHYPEN> ® ¯
+/* 0xB0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // ° ± ² ³ ´ µ ¶ · ¸ ¹ º » ¼ ½ ¾ ¿
+/* 0xC0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // À Á Â Ã Ä Å Æ Ç È É Ê Ë Ì Í Î Ï
+/* 0xD0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // Ð Ñ Ò Ó Ô Õ Ö × Ø Ù Ú Û Ü Ý Þ ß
+/* 0xE0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // à á â ã ä å æ ç è é ê ë ì í î ï
+/* 0xF0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  // ð ñ ò ó ô õ ö ÷ ø ù ú û ü ý þ ÿ
+};
+
+static const char ucReplacementUTF8[] = { 0xef, 0xbf, 0xbd };
+
+
+static inline void render_text(HtmlRenderer* r, const char* pch, size_t len) {
+  WBufAppendBytes(r->outbuf, pch, len);
+}
+
+static inline void render_literal(HtmlRenderer* r, const char* cs) {
+  WBufAppendBytes(r->outbuf, cs, strlen(cs));
+}
+
+static inline void render_char(HtmlRenderer* r, char c) {
+  WBufAppendc(r->outbuf, c);
+}
+
+
+static void render_html_escaped(HtmlRenderer* r, const char* data, size_t size) {
+  MD_OFFSET beg = 0;
+  MD_OFFSET off = 0;
+
+  /* Some characters need to be escaped in normal HTML text. */
+  #define HTML_NEED_ESCAPE(ch)  (htmlEscapeMap[(unsigned char)(ch)] != 0)
+
+  while (1) {
+    while (
+      off + 3 < size &&
+      !HTML_NEED_ESCAPE(data[off+0]) &&
+      !HTML_NEED_ESCAPE(data[off+1]) &&
+      !HTML_NEED_ESCAPE(data[off+2]) &&
+      !HTML_NEED_ESCAPE(data[off+3])
+    ) {
+      off += 4;
+    }
+
+    while (off < size  &&  !HTML_NEED_ESCAPE(data[off])) {
+      off++;
+    }
+
+    if (off > beg) {
+      render_text(r, data + beg, off - beg);
+    }
+
+    if (off < size) {
+      switch (data[off]) {
+        case '&': render_literal(r, "&amp;");  break;
+        case '<': render_literal(r, "&lt;");   break;
+        case '>': render_literal(r, "&gt;");   break;
+        case '"': render_literal(r, "&quot;"); break;
+      }
+      off++;
+    } else {
+      break;
+    }
+    beg = off;
+  }
+}
+
+
+static char slugMap[256] = {
+/*          0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F    */
+/* 0x00 */ '-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-',  // <CTRL> ...
+/* 0x10 */ '-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-',  // <CTRL> ...
+/* 0x20 */ '-','-','-','-','-','-','-','-','-','-','-','-','-','-','.','-',  //   ! " # $ % & ' ( ) * + , - . /
+/* 0x30 */ '0','1','2','3','4','5','6','7','8','9','-','-','-','-','-','-',  // 0 1 2 3 4 5 6 7 8 9 : ; < = > ?
+/* 0x40 */ '-','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o',  // @ A B C D E F G H I J K L M N O
+/* 0x50 */ 'p','q','r','s','t','u','v','w','x','y','z','-','-','-','-','_',  // P Q R S T U V W X Y Z [ \ ] ^ _
+/* 0x60 */ '-','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o',  // ` a b c d e f g h i j k l m n o
+/* 0x70 */ 'p','q','r','s','t','u','v','w','x','y','z','-','-','-','-','-',  // p q r s t u v w x y z { | } ~ <DEL>
+/* 0x80 */ '-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-',  // <CTRL> ...
+/* 0x90 */ '-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-',  // <CTRL> ...
+/* 0xA0 */ '-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-',  // <NBSP> ¡ ¢ £ ¤ ¥ ¦ § ¨ © ª « ¬ <SOFTHYPEN> ® ¯
+/* 0xB0 */ '-','-','-','-','-','-','-','-','-','-','-','-','-','-','-','-',  // ° ± ² ³ ´ µ ¶ · ¸ ¹ º » ¼ ½ ¾ ¿
+/* 0xC0 */ 'a','a','a','a','a','a','a','c','e','e','e','e','i','i','i','i',  // À Á Â Ã Ä Å Æ Ç È É Ê Ë Ì Í Î Ï
+/* 0xD0 */ 'd','n','o','o','o','o','o','x','o','u','u','u','u','y','-','s',  // Ð Ñ Ò Ó Ô Õ Ö × Ø Ù Ú Û Ü Ý Þ ß
+/* 0xE0 */ 'a','a','a','a','a','a','a','c','e','e','e','e','i','i','i','i',  // à á â ã ä å æ ç è é ê ë ì í î ï
+/* 0xF0 */ 'd','n','o','o','o','o','o','-','o','u','u','u','u','y','-','y',  // ð ñ ò ó ô õ ö ÷ ø ù ú û ü ý þ ÿ
+};
+
+
+static size_t WBufAppendSlug(WBuf* b, const char* pch, size_t len) {
+  WBufReserve(b, len);
+  const char* start = b->ptr;
+  char c = 0, pc = 0;
+  for (size_t i = 0; i < len; i++) {
+    u8 x = (u8)pch[i];
+    if (x >= 0x80) {
+      // decode UTF8-encoded character as Latin-1
+      if ((x >> 5) == 0x6 && i+1 < len) {
+        u32 cp = ((x << 6) & 0x7ff) + ((pch[++i]) & 0x3f);
+        x = cp <= 0xFF ? cp : 0;
+      } else {
+        x = 0;
+      }
+    }
+    c = slugMap[x];
+    if (c != '-' || pc != '-' && pc) {
+      // note: check "pc" to trim leading '-'
+      *(b->ptr++) = c;
+      pc = c;
+    }
+  }
+  if (pc == '-') {
+    // trim trailing '-'
+    b->ptr--;
+  }
+  return b->ptr - start;
+}
+
+
+static void render_attribute(HtmlRenderer* r, const MD_ATTRIBUTE* attr) {
+  int i;
+  for (i = 0; attr->substr_offsets[i] < attr->size; i++) {
+    MD_TEXTTYPE type = attr->substr_types[i];
+    MD_OFFSET   off  = attr->substr_offsets[i];
+    MD_SIZE     size = attr->substr_offsets[i+1] - off;
+    const MD_CHAR* text = attr->text + off;
+    switch (type) {
+      case MD_TEXT_NULLCHAR: render_text(r, ucReplacementUTF8, sizeof(ucReplacementUTF8)); break;
+      case MD_TEXT_ENTITY:   render_text(r, text, size); break;
+      default:               render_html_escaped(r, text, size); break;
+    }
+  }
+}
+
+
+static void render_open_ol_block(HtmlRenderer* r, const MD_BLOCK_OL_DETAIL* det) {
+  if (det->start == 1) {
+    render_literal(r, "<ol>\n");
+  } else {
+    render_literal(r, "<ol start=\"");
+    WBufAppendU32(r->outbuf, det->start, 10);
+    render_literal(r, "\">\n");
+  }
+}
+
+static void render_open_li_block(HtmlRenderer* r, const MD_BLOCK_LI_DETAIL* det) {
+  if (det->is_task) {
+    render_literal(r, "<li class=\"task-list-item\"><input type=\"checkbox\" disabled");
+    if (det->task_mark == 'x' || det->task_mark == 'X') {
+      render_literal(r, " checked");
+    }
+    render_char(r, '>');
+  } else {
+    render_literal(r, "<li>");
+  }
+}
+
+static void render_open_code_block(HtmlRenderer* r, const MD_BLOCK_CODE_DETAIL* det) {
+  render_literal(r, "<pre><code");
+  if (det->lang.text != NULL) {
+    render_literal(r, " class=\"language-");
+    render_attribute(r, &det->lang);
+    render_char(r, '"');
+  }
+  render_char(r, '>');
+}
+
+static void render_open_td_block(HtmlRenderer* r, bool isTH, const MD_BLOCK_TD_DETAIL* det) {
+  render_text(r, isTH ? "<th" : "<td", 3);
+  switch (det->align) {
+    case MD_ALIGN_LEFT:   render_literal(r, " align=\"left\">"); break;
+    case MD_ALIGN_CENTER: render_literal(r, " align=\"center\">"); break;
+    case MD_ALIGN_RIGHT:  render_literal(r, " align=\"right\">"); break;
+    default:              render_char(r, '>'); break;
+  }
+}
+
+static void render_open_a_span(HtmlRenderer* r, const MD_SPAN_A_DETAIL* det) {
+  render_literal(r, "<a href=\"");
+  render_attribute(r, &det->href);
+  if (det->title.text != NULL) {
+    render_literal(r, "\" title=\"");
+    render_attribute(r, &det->title);
+  }
+  render_literal(r, "\">");
+}
+
+static void render_open_img_span(HtmlRenderer* r, const MD_SPAN_IMG_DETAIL* det) {
+  render_literal(r, "<img src=\"");
+  render_attribute(r, &det->src);
+  render_literal(r, "\" alt=\"");
+  r->imgnest++;
+}
+
+static void render_close_img_span(HtmlRenderer* r, const MD_SPAN_IMG_DETAIL* det) {
+  if(det->title.text != NULL) {
+    render_literal(r, "\" title=\"");
+    render_attribute(r, &det->title);
+  }
+  render_literal(r, "\">");
+  r->imgnest--;
+}
+
+static void render_open_wikilink_span(HtmlRenderer* r, const MD_SPAN_WIKILINK_DETAIL* det) {
+  render_literal(r, "<x-wikilink data-target=\"");
+  render_attribute(r, &det->target);
+  render_literal(r, "\">");
+}
+
+
+/**************************************
+ ***  HTML renderer implementation  ***
+ **************************************/
+
+
+
+static int enter_block_callback(MD_BLOCKTYPE type, void* detail, void* userdata) {
+  static const MD_CHAR* head[6] = { "<h1>", "<h2>", "<h3>", "<h4>", "<h5>", "<h6>" };
+  HtmlRenderer* r = (HtmlRenderer*) userdata;
+
+  switch(type) {
+    case MD_BLOCK_DOC:      /* noop */ break;
+    case MD_BLOCK_QUOTE:    render_literal(r, "<blockquote>\n"); break;
+    case MD_BLOCK_UL:       render_literal(r, "<ul>\n"); break;
+    case MD_BLOCK_OL:       render_open_ol_block(r, (const MD_BLOCK_OL_DETAIL*)detail); break;
+    case MD_BLOCK_LI:       render_open_li_block(r, (const MD_BLOCK_LI_DETAIL*)detail); break;
+    case MD_BLOCK_HR:       render_literal(r, "<hr>\n"); break;
+    case MD_BLOCK_H:
+    {
+      render_literal(r, head[((MD_BLOCK_H_DETAIL*)detail)->level - 1]);
+      r->addanchor = 1;
+      break;
+    }
+    case MD_BLOCK_CODE:     render_open_code_block(r, (const MD_BLOCK_CODE_DETAIL*) detail); break;
+    case MD_BLOCK_HTML:     /* noop */ break;
+    case MD_BLOCK_P:        render_literal(r, "<p>"); break;
+    case MD_BLOCK_TABLE:    render_literal(r, "<table>\n"); break;
+    case MD_BLOCK_THEAD:    render_literal(r, "<thead>\n"); break;
+    case MD_BLOCK_TBODY:    render_literal(r, "<tbody>\n"); break;
+    case MD_BLOCK_TR:       render_literal(r, "<tr>\n"); break;
+    case MD_BLOCK_TH:       render_open_td_block(r, true, (MD_BLOCK_TD_DETAIL*)detail); break;
+    case MD_BLOCK_TD:       render_open_td_block(r, false, (MD_BLOCK_TD_DETAIL*)detail); break;
+  }
+
+  return 0;
+}
+
+static int leave_block_callback(MD_BLOCKTYPE type, void* detail, void* userdata) {
+  static const MD_CHAR* head[6] = { "</h1>\n", "</h2>\n", "</h3>\n", "</h4>\n", "</h5>\n", "</h6>\n" };
+  HtmlRenderer* r = (HtmlRenderer*) userdata;
+
+  switch(type) {
+    case MD_BLOCK_DOC:      /*noop*/ break;
+    case MD_BLOCK_QUOTE:    render_literal(r, "</blockquote>\n"); break;
+    case MD_BLOCK_UL:       render_literal(r, "</ul>\n"); break;
+    case MD_BLOCK_OL:       render_literal(r, "</ol>\n"); break;
+    case MD_BLOCK_LI:       render_literal(r, "</li>\n"); break;
+    case MD_BLOCK_HR:       /*noop*/ break;
+    case MD_BLOCK_H:        render_literal(r, head[((MD_BLOCK_H_DETAIL*)detail)->level - 1]); break;
+    case MD_BLOCK_CODE:     render_literal(r, "</code></pre>\n"); break;
+    case MD_BLOCK_HTML:     /* noop */ break;
+    case MD_BLOCK_P:        render_literal(r, "</p>\n"); break;
+    case MD_BLOCK_TABLE:    render_literal(r, "</table>\n"); break;
+    case MD_BLOCK_THEAD:    render_literal(r, "</thead>\n"); break;
+    case MD_BLOCK_TBODY:    render_literal(r, "</tbody>\n"); break;
+    case MD_BLOCK_TR:       render_literal(r, "</tr>\n"); break;
+    case MD_BLOCK_TH:       render_literal(r, "</th>\n"); break;
+    case MD_BLOCK_TD:       render_literal(r, "</td>\n"); break;
+  }
+
+  return 0;
+}
+
+static int enter_span_callback(MD_SPANTYPE type, void* detail, void* userdata) {
+  HtmlRenderer* r = (HtmlRenderer*) userdata;
+
+  if(r->imgnest > 0) {
+    /* We are inside an image, i.e. rendering the ALT attribute of
+     * <IMG> tag. */
+    return 0;
+  }
+
+  switch(type) {
+    case MD_SPAN_EM:                render_literal(r, "<em>"); break;
+    case MD_SPAN_STRONG:            render_literal(r, "<b>"); break;
+    case MD_SPAN_A:                 render_open_a_span(r, (MD_SPAN_A_DETAIL*) detail); break;
+    case MD_SPAN_IMG:               render_open_img_span(r, (MD_SPAN_IMG_DETAIL*) detail); break;
+    case MD_SPAN_CODE:              render_literal(r, "<code>"); break;
+    case MD_SPAN_DEL:               render_literal(r, "<del>"); break;
+    case MD_SPAN_LATEXMATH:         render_literal(r, "<x-equation>"); break;
+    case MD_SPAN_LATEXMATH_DISPLAY: render_literal(r, "<x-equation type=\"display\">"); break;
+    case MD_SPAN_WIKILINK:          render_open_wikilink_span(r, (MD_SPAN_WIKILINK_DETAIL*) detail); break;
+  }
+
+  return 0;
+}
+
+static int leave_span_callback(MD_SPANTYPE type, void* detail, void* userdata) {
+  HtmlRenderer* r = (HtmlRenderer*) userdata;
+
+  if(r->imgnest > 0) {
+    /* We are inside an image, i.e. rendering the ALT attribute of
+     * <IMG> tag. */
+    if(r->imgnest == 1  &&  type == MD_SPAN_IMG)
+      render_close_img_span(r, (MD_SPAN_IMG_DETAIL*) detail);
+    return 0;
+  }
+
+  switch(type) {
+    case MD_SPAN_EM:                render_literal(r, "</em>"); break;
+    case MD_SPAN_STRONG:            render_literal(r, "</b>"); break;
+    case MD_SPAN_A:                 render_literal(r, "</a>"); break;
+    case MD_SPAN_IMG:               /*noop, handled above*/ break;
+    case MD_SPAN_CODE:              render_literal(r, "</code>"); break;
+    case MD_SPAN_DEL:               render_literal(r, "</del>"); break;
+    case MD_SPAN_LATEXMATH:         /*fall through*/
+    case MD_SPAN_LATEXMATH_DISPLAY: render_literal(r, "</x-equation>"); break;
+    case MD_SPAN_WIKILINK:          render_literal(r, "</x-wikilink>"); break;
+  }
+
+  return 0;
+}
+
+static int text_callback(MD_TEXTTYPE type, const MD_CHAR* text, MD_SIZE size, void* userdata) {
+  HtmlRenderer* r = (HtmlRenderer*) userdata;
+
+  if (r->addanchor) {
+    r->addanchor = 0;
+    if (type != MD_TEXT_NULLCHAR && type != MD_TEXT_BR && type != MD_TEXT_SOFTBR) {
+      render_literal(r, "<a id=\"");
+
+      const char* slugptr = r->outbuf->ptr;
+      size_t sluglen = WBufAppendSlug(r->outbuf, text, size);
+
+      render_literal(r, "\" class=\"anchor\" aria-hidden=\"true\" href=\"#");
+
+      if (sluglen > 0) {
+        WBufReserve(r->outbuf, sluglen);
+        memcpy(r->outbuf->ptr, slugptr, sluglen);
+        r->outbuf->ptr += sluglen;
+      }
+
+      render_literal(r, "\"></a>");
+    }
+  }
+
+  switch(type) {
+    case MD_TEXT_NULLCHAR:  render_text(r, ucReplacementUTF8, sizeof(ucReplacementUTF8)); break;
+    case MD_TEXT_BR:        render_literal(r, (r->imgnest == 0 ? "<br>\n" : " ")); break;
+    case MD_TEXT_SOFTBR:    render_literal(r, (r->imgnest == 0 ? "\n" : " ")); break;
+    case MD_TEXT_HTML:      render_text(r, text, size); break;
+    case MD_TEXT_ENTITY:    render_text(r, text, size); break;
+    default:                render_html_escaped(r, text, size); break;
+  }
+
+  return 0;
+}
+
+// static void debug_log_callback(const char* msg, void* userdata) {
+//   dlog("MD4C: %s\n", msg);
+// }
+
+int
+fmt_html(const MD_CHAR* input, MD_SIZE input_size, WBuf* outbuf, unsigned parser_flags) {
+  HtmlRenderer render = { outbuf, 0, 0 };
+
+  MD_PARSER parser = {
+    0,
+    parser_flags,
+    enter_block_callback,
+    leave_block_callback,
+    enter_span_callback,
+    leave_span_callback,
+    text_callback,
+    NULL, // debug_log_callback,
+    NULL
+  };
+
+  return md_parse(input, input_size, &parser, (void*) &render);
+}
diff --git a/src/fmt_html.h b/src/fmt_html.h
new file mode 100644
index 0000000..a66dd1e
--- /dev/null
+++ b/src/fmt_html.h
@@ -0,0 +1,4 @@
+#pragma once
+#include "wbuf.h"
+
+int fmt_html(const char* input, u32 inputlen, WBuf* outbuf, u32 parserFlags);
diff --git a/src/fmt_json.c b/src/fmt_json.c
new file mode 100644
index 0000000..e69817b
--- /dev/null
+++ b/src/fmt_json.c
@@ -0,0 +1,542 @@
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "fmt_json.h"
+#include "md4c.h"
+// #include "md4c_render_html.h"
+// #include "entity.h"
+
+//
+//
+// --------------   WORK IN PROGRESS
+//
+//
+
+#ifdef _WIN32
+  #define snprintf _snprintf
+#endif
+
+
+#ifndef DEBUG
+#define DEBUG 1
+#endif
+#if DEBUG
+#include <stdio.h>
+#  define dlog(...)  printf(__VA_ARGS__)
+#else
+#  define dlog(...)
+#endif /* DEBUG > 0 */
+
+
+typedef struct JsonFormatter_st {
+  WBuf* outbuf;
+} JsonFormatter;
+
+
+#define ISDIGIT(ch)  ('0' <= (ch) && (ch) <= '9')
+#define ISLOWER(ch)  ('a' <= (ch) && (ch) <= 'z')
+#define ISUPPER(ch)  ('A' <= (ch) && (ch) <= 'Z')
+#define ISALNUM(ch)  (ISLOWER(ch) || ISUPPER(ch) || ISDIGIT(ch))
+
+
+// static inline void render_text(JsonFormatter* r, const MD_CHAR* text, MD_SIZE size) {
+//   // r->process_output(text, size, r->userdata);
+//   WBufAppendBytes(r->outbuf, text, size);
+// }
+
+#define render_text(f, textptr, textlen) \
+  WBufAppendBytes((r)->outbuf, (textptr), (textlen))
+
+// #define RENDER_LITERAL(r, literal) \
+//   WBufAppendBytes((r)->outbuf, (literal), (MD_SIZE)strlen(literal))
+
+
+static char jsonEscapeMap[256];
+
+static void __attribute__((constructor)) init() {
+  jsonEscapeMap[(unsigned char)'"'] = 1;
+  jsonEscapeMap[(unsigned char)'\n'] = 1;
+  jsonEscapeMap[(unsigned char)'\r'] = 1;
+  jsonEscapeMap[(unsigned char)'\t'] = 1;
+}
+
+
+static void writeJsonEscaped(JsonFormatter* r, const MD_CHAR* data, MD_SIZE size) {
+  MD_OFFSET beg = 0;
+  MD_OFFSET off = 0;
+
+  #define NEED_ESCAPE(ch)  (jsonEscapeMap[(unsigned char)(ch)] != 0)
+
+  while(1) {
+    /* Optimization: Use some loop unrolling. */
+    while (
+      off + 3 < size &&
+      !NEED_ESCAPE(data[off+0]) &&
+      !NEED_ESCAPE(data[off+1]) &&
+      !NEED_ESCAPE(data[off+2]) &&
+      !NEED_ESCAPE(data[off+3])
+    ) {
+      off += 4;
+    }
+    while (off < size && !NEED_ESCAPE(data[off])) {
+      off++;
+    }
+
+    if (off > beg) {
+      WBufAppendBytes(r->outbuf, data + beg, off - beg);
+    }
+
+    if (off < size) {
+      switch (data[off]) {
+        case '"':   WBufAppendCStr(r->outbuf, "\\\""); break;
+        case '\n':  WBufAppendCStr(r->outbuf, "\\n");  break;
+        case '\r':  WBufAppendCStr(r->outbuf, "\\r");  break;
+        case '\t':  WBufAppendCStr(r->outbuf, "\\t");  break;
+      }
+      off++;
+    } else {
+      break;
+    }
+
+    beg = off;
+  }
+
+  #undef NEED_ESCAPE
+}
+
+
+static void
+render_url_escaped(JsonFormatter* r, const MD_CHAR* data, MD_SIZE size)
+{
+  static const MD_CHAR hex_chars[] = "0123456789ABCDEF";
+  MD_OFFSET beg = 0;
+  MD_OFFSET off = 0;
+
+  #define URL_NEED_ESCAPE(ch)                                             \
+      (!ISALNUM(ch)  &&  strchr("-_.+!*'(),%#@?=;:/,+$", ch) == NULL)
+
+  while(1) {
+    while(off < size  &&  !URL_NEED_ESCAPE(data[off]))
+      off++;
+    if(off > beg)
+      render_text(r, data + beg, off - beg);
+
+    if(off < size) {
+      char hex[3];
+
+      switch(data[off]) {
+        case '&':   WBufAppendCStr(r->outbuf, "&amp;"); break;
+        case '\'':  WBufAppendCStr(r->outbuf, "&#x27;"); break;
+        default:
+          hex[0] = '%';
+          hex[1] = hex_chars[((unsigned)data[off] >> 4) & 0xf];
+          hex[2] = hex_chars[((unsigned)data[off] >> 0) & 0xf];
+          render_text(r, hex, 3);
+          break;
+      }
+      off++;
+    } else {
+      break;
+    }
+
+    beg = off;
+  }
+}
+
+static unsigned
+hex_val(char ch)
+{
+  if('0' <= ch && ch <= '9')
+    return ch - '0';
+  if('A' <= ch && ch <= 'Z')
+    return ch - 'A' + 10;
+  else
+    return ch - 'a' + 10;
+}
+
+static void WBufAppendUTF8Codepoint(WBuf* b, u32 codepoint) {
+  if (codepoint <= 0x7f) {
+    WBufAppendc(b, (char)codepoint);
+    return;
+  }
+
+  unsigned char utf8[4];
+  size_t n;
+  if (codepoint <= 0x7ff) {
+    n = 2;
+    utf8[0] = 0xc0 | ((codepoint >>  6) & 0x1f);
+    utf8[1] = 0x80 + ((codepoint >>  0) & 0x3f);
+  } else if (codepoint <= 0xffff) {
+    n = 3;
+    utf8[0] = 0xe0 | ((codepoint >> 12) & 0xf);
+    utf8[1] = 0x80 + ((codepoint >>  6) & 0x3f);
+    utf8[2] = 0x80 + ((codepoint >>  0) & 0x3f);
+  } else {
+    n = 4;
+    utf8[0] = 0xf0 | ((codepoint >> 18) & 0x7);
+    utf8[1] = 0x80 + ((codepoint >> 12) & 0x3f);
+    utf8[2] = 0x80 + ((codepoint >>  6) & 0x3f);
+    utf8[3] = 0x80 + ((codepoint >>  0) & 0x3f);
+  }
+
+  if (0 < codepoint && codepoint <= 0x10ffff) {
+    WBufAppendBytes(b, (const char*)utf8, n);
+  } else {
+    static const MD_CHAR utf8_replacement_char[] = { 0xef, 0xbf, 0xbd };
+    WBufAppendBytes(b, utf8_replacement_char, sizeof(utf8_replacement_char));
+  }
+}
+
+/* Translate entity to its UTF-8 equivalent, or output the verbatim one
+ * if such entity is unknown (or if the translation is disabled). */
+static void writeDecodeXmlEntity(JsonFormatter* r, const MD_CHAR* text, MD_SIZE size) {
+  if (size > 3 && text[1] == '#') {
+    unsigned codepoint = 0;
+
+    if(text[2] == 'x' || text[2] == 'X') {
+      // Hexadecimal entity (e.g. "&#x1234abcd;")).
+      for (MD_SIZE i = 3; i < size-1; i++) {
+        codepoint = 16 * codepoint + hex_val(text[i]);
+      }
+    } else {
+      // Decimal entity (e.g. "&1234;")
+      for (MD_SIZE i = 2; i < size-1; i++) {
+        codepoint = 10 * codepoint + (text[i] - '0');
+      }
+    }
+
+    WBufAppendUTF8Codepoint(r->outbuf, codepoint);
+  } else {
+    WBufAppendBytes(r->outbuf, text, size);
+  }
+}
+
+static void
+render_attribute(JsonFormatter* r, const MD_ATTRIBUTE* attr,
+         void (*fn_append)(JsonFormatter*, const MD_CHAR*, MD_SIZE))
+{
+  int i;
+
+  for(i = 0; attr->substr_offsets[i] < attr->size; i++) {
+    MD_TEXTTYPE type = attr->substr_types[i];
+    MD_OFFSET off = attr->substr_offsets[i];
+    MD_SIZE size = attr->substr_offsets[i+1] - off;
+    const MD_CHAR* text = attr->text + off;
+
+    switch(type) {
+      case MD_TEXT_NULLCHAR:  WBufAppendc(r->outbuf, 0); break;
+      case MD_TEXT_ENTITY:    writeDecodeXmlEntity(r, text, size); break;
+      default:                WBufAppendBytes(r->outbuf, text, size); break;
+    }
+  }
+}
+
+
+static void
+render_open_ol_block(JsonFormatter* r, const MD_BLOCK_OL_DETAIL* det)
+{
+  char buf[64];
+
+  if(det->start == 1) {
+    WBufAppendCStr(r->outbuf, "<ol>\n");
+    return;
+  }
+
+  snprintf(buf, sizeof(buf), "<ol start=\"%u\">\n", det->start);
+  WBufAppendCStr(r->outbuf, buf);
+}
+
+static void
+render_open_li_block(JsonFormatter* r, const MD_BLOCK_LI_DETAIL* det)
+{
+  if(det->is_task) {
+    WBufAppendCStr(r->outbuf,
+      "<li class=\"task-list-item\">"
+      "<input type=\"checkbox\" class=\"task-list-item-checkbox\" disabled");
+    if (det->task_mark == 'x' || det->task_mark == 'X') {
+      WBufAppendCStr(r->outbuf, " checked");
+    }
+    WBufAppendc(r->outbuf, '>');
+  } else {
+    WBufAppendCStr(r->outbuf, "<li>");
+  }
+}
+
+static void
+render_open_code_block(JsonFormatter* r, const MD_BLOCK_CODE_DETAIL* det)
+{
+  WBufAppendCStr(r->outbuf, "<pre><code");
+
+  /* If known, output the HTML 5 attribute class="language-LANGNAME". */
+  if(det->lang.text != NULL) {
+    WBufAppendCStr(r->outbuf, " class=\"language-");
+    render_attribute(r, &det->lang, writeJsonEscaped);
+    WBufAppendc(r->outbuf, '"');
+  }
+
+  WBufAppendc(r->outbuf, '>');
+}
+
+static void
+render_open_td_block(JsonFormatter* r, const MD_CHAR* cell_type, const MD_BLOCK_TD_DETAIL* det)
+{
+  WBufAppendc(r->outbuf, '<');
+  WBufAppendCStr(r->outbuf, cell_type);
+
+  switch (det->align) {
+    case MD_ALIGN_LEFT:     WBufAppendCStr(r->outbuf, " align=\"left\">"); break;
+    case MD_ALIGN_CENTER:   WBufAppendCStr(r->outbuf, " align=\"center\">"); break;
+    case MD_ALIGN_RIGHT:    WBufAppendCStr(r->outbuf, " align=\"right\">"); break;
+    default:                WBufAppendCStr(r->outbuf, ">"); break;
+  }
+}
+
+static void
+render_open_a_span(JsonFormatter* r, const MD_SPAN_A_DETAIL* det)
+{
+  WBufAppendCStr(r->outbuf, "<a href=\"");
+  render_attribute(r, &det->href, render_url_escaped);
+
+  if(det->title.text != NULL) {
+    WBufAppendCStr(r->outbuf, "\" title=\"");
+    render_attribute(r, &det->title, writeJsonEscaped);
+  }
+
+  WBufAppendCStr(r->outbuf, "\">");
+}
+
+static void
+render_open_img_span(JsonFormatter* r, const MD_SPAN_IMG_DETAIL* det)
+{
+  WBufAppendCStr(r->outbuf, "<img src=\"");
+  render_attribute(r, &det->src, render_url_escaped);
+
+  WBufAppendCStr(r->outbuf, "\" alt=\"");
+}
+
+static void
+render_close_img_span(JsonFormatter* r, const MD_SPAN_IMG_DETAIL* det)
+{
+  if(det->title.text != NULL) {
+    WBufAppendCStr(r->outbuf, "\" title=\"");
+    render_attribute(r, &det->title, writeJsonEscaped);
+  }
+
+  WBufAppendCStr(r->outbuf, "\">");
+}
+
+static void
+render_open_wikilink_span(JsonFormatter* r, const MD_SPAN_WIKILINK_DETAIL* det)
+{
+  WBufAppendCStr(r->outbuf, "<x-wikilink data-target=\"");
+  render_attribute(r, &det->target, writeJsonEscaped);
+  WBufAppendCStr(r->outbuf, "\">");
+}
+
+
+// ------------------------------------------------------------------------------------------------
+
+
+static void writeTypeStart(JsonFormatter* r, const char* typename, size_t typenamelen) {
+  WBufAppendCStr(r->outbuf, "{\"_\":\"");
+  WBufAppendBytes(r->outbuf, typename, typenamelen);
+  WBufAppendc(r->outbuf, '"');
+}
+
+
+static void writeAttribute(JsonFormatter* r, const MD_ATTRIBUTE* attr) {
+  for (u32 i = 0; attr->substr_offsets[i] < attr->size; i++) {
+    MD_TEXTTYPE type = attr->substr_types[i];
+    MD_OFFSET   off  = attr->substr_offsets[i];
+    MD_SIZE     size = attr->substr_offsets[i+1] - off;
+    const MD_CHAR* text = attr->text + off;
+    switch (type) {
+      case MD_TEXT_NULLCHAR:  WBufAppendCStr(r->outbuf, "\\0"); break;
+      case MD_TEXT_ENTITY:    writeDecodeXmlEntity(r, text, size); break;
+      default:                WBufAppendBytes(r->outbuf, text, size); break;
+    }
+  }
+}
+
+
+static int enter_block_callback(MD_BLOCKTYPE type, void* detail, void* userdata) {
+  static const MD_CHAR* head[6] = { "h1", "h2", "h3", "h4", "h5", "h6" };
+  JsonFormatter* r = (JsonFormatter*) userdata;
+  const char* typename = "";
+  size_t typenamelen = 0;
+  #define WRITE_TYPE_START(name) writeTypeStart(r, (name), strlen((name)))
+
+  switch (type) {
+    case MD_BLOCK_DOC:   WRITE_TYPE_START("doc"); break;
+    case MD_BLOCK_QUOTE: WRITE_TYPE_START("quote"); break;
+    case MD_BLOCK_UL:    WRITE_TYPE_START("ul"); break;
+    case MD_BLOCK_HTML:  WRITE_TYPE_START("html"); break;
+    case MD_BLOCK_P:     WRITE_TYPE_START("p"); break;
+    case MD_BLOCK_TABLE: WRITE_TYPE_START("table"); break;
+    case MD_BLOCK_THEAD: WRITE_TYPE_START("thead"); break;
+    case MD_BLOCK_TBODY: WRITE_TYPE_START("tbody"); break;
+    case MD_BLOCK_TR:    WRITE_TYPE_START("tr"); break;
+    case MD_BLOCK_HR:    WRITE_TYPE_START("hr"); break;
+
+    case MD_BLOCK_H: {
+      WRITE_TYPE_START(head[((MD_BLOCK_H_DETAIL*)detail)->level - 1]);
+      break;
+    }
+
+    case MD_BLOCK_OL: {
+      WRITE_TYPE_START("ol");
+      const MD_BLOCK_OL_DETAIL* d = (const MD_BLOCK_OL_DETAIL*)detail;
+      if (d->start != 1) {
+        char buf[24];
+        snprintf(buf, sizeof(buf), ", \"start\":%u", d->start);
+        WBufAppendCStr(r->outbuf, buf);
+      }
+      if (d->is_tight) {
+        WBufAppendCStr(r->outbuf, ", \"tight\":true");
+      }
+      WBufAppendCStr(r->outbuf, ", \"delimiter\":\"");
+      WBufAppendc(r->outbuf, d->mark_delimiter);
+      WBufAppendc(r->outbuf, '"');
+      break;
+    }
+
+    case MD_BLOCK_LI: {
+      const MD_BLOCK_LI_DETAIL* d = (const MD_BLOCK_LI_DETAIL*)detail;
+      if (d->is_task) {
+        WBufAppendCStr(r->outbuf, "{\"_\":\"task\"");
+        if (d->task_mark == 'x' || d->task_mark == 'X') {
+          WBufAppendCStr(r->outbuf, ", \"complete\":true");
+        }
+      } else {
+        WRITE_TYPE_START("li");
+      }
+      break;
+    }
+
+    case MD_BLOCK_CODE: {
+      WRITE_TYPE_START("code");
+      const MD_BLOCK_CODE_DETAIL* d = (const MD_BLOCK_CODE_DETAIL*)detail;
+      if (d->lang.text != NULL) {
+        WBufAppendCStr(r->outbuf, ", \"lang\":\"");
+        writeAttribute(r, &d->lang);
+        WBufAppendc(r->outbuf, '"');
+      }
+      if (d->info.text != NULL) {
+        WBufAppendCStr(r->outbuf, ", \"info\":\"");
+        writeAttribute(r, &d->info);
+        WBufAppendc(r->outbuf, '"');
+      }
+      break;
+    }
+
+    case MD_BLOCK_TH:
+    case MD_BLOCK_TD: {
+      writeTypeStart(r, type == MD_BLOCK_TH ? "th" : "td", 2);
+      const MD_BLOCK_TD_DETAIL* d = (const MD_BLOCK_TD_DETAIL*)detail;
+      switch (d->align) {
+          case MD_ALIGN_LEFT:   WBufAppendCStr(r->outbuf, ", \"align\":\"left\""); break;
+          case MD_ALIGN_CENTER: WBufAppendCStr(r->outbuf, ", \"align\":\"center\""); break;
+          case MD_ALIGN_RIGHT:  WBufAppendCStr(r->outbuf, ", \"align\":\"right\""); break;
+          default: break;  // unspecified alignment
+      }
+      break;
+    }
+
+// static void
+// render_open_td_block(MD_RENDER_HTML* r, const MD_CHAR* cell_type, const MD_BLOCK_TD_DETAIL* det)
+// {
+//     RENDER_LITERAL(r, "<");
+//     RENDER_LITERAL(r, cell_type);
+
+//     switch(det->align) {
+//         case MD_ALIGN_LEFT:     RENDER_LITERAL(r, " align=\"left\">"); break;
+//         case MD_ALIGN_CENTER:   RENDER_LITERAL(r, " align=\"center\">"); break;
+//         case MD_ALIGN_RIGHT:    RENDER_LITERAL(r, " align=\"right\">"); break;
+//         default:                RENDER_LITERAL(r, ">"); break;
+//     }
+  }
+
+  WBufAppendCStr(r->outbuf, ", \"children\":[\n  ");
+  return 0;
+}
+
+
+static int leave_block_callback(MD_BLOCKTYPE type, void* detail, void* userdata) {
+  JsonFormatter* r = (JsonFormatter*)userdata;
+  WBufAppendCStr(r->outbuf, "]},\n");
+  return 0;
+}
+
+
+static int enter_span_callback(MD_SPANTYPE type, void* detail, void* userdata) {
+  JsonFormatter* r = (JsonFormatter*) userdata;
+
+  switch(type) {
+    case MD_SPAN_EM:                WBufAppendCStr(r->outbuf, "<em>"); break;
+    case MD_SPAN_STRONG:            WBufAppendCStr(r->outbuf, "<b>"); break;
+    case MD_SPAN_A:                 render_open_a_span(r, (MD_SPAN_A_DETAIL*) detail); break;
+    case MD_SPAN_IMG:               render_open_img_span(r, (MD_SPAN_IMG_DETAIL*) detail); break;
+    case MD_SPAN_CODE:              WBufAppendCStr(r->outbuf, "<code>"); break;
+    case MD_SPAN_DEL:               WBufAppendCStr(r->outbuf, "<del>"); break;
+    case MD_SPAN_LATEXMATH:         WBufAppendCStr(r->outbuf, "<x-equation>"); break;
+    case MD_SPAN_LATEXMATH_DISPLAY: WBufAppendCStr(r->outbuf, "<x-equation type=\"display\">"); break;
+    case MD_SPAN_WIKILINK:          render_open_wikilink_span(r, (MD_SPAN_WIKILINK_DETAIL*) detail); break;
+  }
+
+  return 0;
+}
+
+static int leave_span_callback(MD_SPANTYPE type, void* detail, void* userdata) {
+  JsonFormatter* r = (JsonFormatter*) userdata;
+
+  switch(type) {
+    case MD_SPAN_EM:                WBufAppendCStr(r->outbuf, "</em>"); break;
+    case MD_SPAN_STRONG:            WBufAppendCStr(r->outbuf, "</b>"); break;
+    case MD_SPAN_A:                 WBufAppendCStr(r->outbuf, "</a>"); break;
+    case MD_SPAN_IMG:               /*noop, handled above*/ break;
+    case MD_SPAN_CODE:              WBufAppendCStr(r->outbuf, "</code>"); break;
+    case MD_SPAN_DEL:               WBufAppendCStr(r->outbuf, "</del>"); break;
+    case MD_SPAN_LATEXMATH:         /*fall through*/
+    case MD_SPAN_LATEXMATH_DISPLAY: WBufAppendCStr(r->outbuf, "</x-equation>"); break;
+    case MD_SPAN_WIKILINK:          WBufAppendCStr(r->outbuf, "</x-wikilink>"); break;
+  }
+
+  return 0;
+}
+
+static int text_callback(MD_TEXTTYPE type, const MD_CHAR* text, MD_SIZE size, void* userdata) {
+  JsonFormatter* r = (JsonFormatter*)userdata;
+
+  WBufAppendCStr(r->outbuf, ", \"");
+
+  switch (type) {
+    case MD_TEXT_NULLCHAR:  WBufAppendCStr(r->outbuf, "\\0"); break;
+    case MD_TEXT_BR:        WBufAppendCStr(r->outbuf, "<br>"); break;
+    case MD_TEXT_SOFTBR:    WBufAppendc(r->outbuf, '\n'); break;
+    case MD_TEXT_HTML:      render_text(r, text, size); break;
+    case MD_TEXT_ENTITY:    writeDecodeXmlEntity(r, text, size); break;
+    default:                writeJsonEscaped(r, text, size); break;
+  }
+
+  WBufAppendc(r->outbuf, '"');
+
+  return 0;
+}
+
+int fmt_json(const MD_CHAR* input, MD_SIZE input_size, WBuf* outbuf, u32 parser_flags) {
+  JsonFormatter render = { outbuf };
+  MD_PARSER parser = {
+    0,
+    parser_flags,
+    enter_block_callback,
+    leave_block_callback,
+    enter_span_callback,
+    leave_span_callback,
+    text_callback,
+    NULL, //debug_log_callback,
+    NULL
+  };
+
+  return md_parse(input, input_size, &parser, (void*) &render);
+}
diff --git a/src/fmt_json.h b/src/fmt_json.h
new file mode 100644
index 0000000..f111b85
--- /dev/null
+++ b/src/fmt_json.h
@@ -0,0 +1,4 @@
+#pragma once
+#include "wbuf.h"
+
+int fmt_json(const char* input, u32 inputlen, WBuf* outbuf, u32 parserFlags);
diff --git a/src/md.c b/src/md.c
new file mode 100644
index 0000000..1398f9f
--- /dev/null
+++ b/src/md.c
@@ -0,0 +1,66 @@
+#include <ctype.h>
+#include "common.h"
+#include "wlib.h"
+#include "wbuf.h"
+#include "fmt_html.h"
+// #include "fmt_json.h"
+
+// #include "md4c.h"
+/* If set, debug output from md_parse() is sent to stderr. */
+#define MD_RENDER_FLAG_DEBUG                0x0001
+#define MD_RENDER_FLAG_VERBATIM_ENTITIES    0x0002
+
+typedef enum OutputFlags {
+  OutputFlagsHTML = 1 << 0,
+} OutputFlags;
+
+typedef enum ErrorCode {
+  ERR_NONE,
+  ERR_MD_PARSE,
+  ERR_OUTFLAGS,
+} ErrorCode;
+
+
+#if DEBUG
+void __attribute__((constructor)) init() {
+  dlog("WASM INIT\n");
+}
+#endif
+
+
+// Shared, reusable output buffer.
+// Must make sure to never use this across calls from WASM host.
+static WBuf outbuf;
+
+
+export size_t parseUTF8(
+  const char* inbufptr,
+  u32 inbuflen,
+  u32 parser_flags,
+  OutputFlags outflags,
+  const char** outptr
+) {
+  dlog("parseUTF8 called with inbufptr=%p  inbuflen=%u\n", inbufptr, inbuflen);
+
+  WBufReset(&outbuf);
+
+  if (outflags & OutputFlagsHTML) {
+    WBufReserve(&outbuf, inbuflen * 2);  // approximate output size to minimize reallocations
+
+    if (fmt_html(inbufptr, inbuflen, &outbuf, parser_flags) != 0) {
+      // fmt_html returns status of md_parse which only fails in extreme cases
+      // like when out of memory. md4c does not provide error codes or error messages.
+      WErrSet(ERR_MD_PARSE, "md parser error");
+      *outptr = 0;
+      return 0;
+    }
+
+    *outptr = outbuf.start;
+    // dlog("outbuf =>\n%.*s\n", WBufLen(&outbuf), outbuf.start);
+    return WBufLen(&outbuf);
+  }
+
+  WErrSet(ERR_OUTFLAGS, "no output format set in output flags");
+  *outptr = 0;
+  return 0;
+}
diff --git a/src/md.js b/src/md.js
new file mode 100644
index 0000000..710eab9
--- /dev/null
+++ b/src/md.js
@@ -0,0 +1,77 @@
+import { utf8, withTmpBytePtr, withOutPtr, werrCheck } from "./wlib"
+
+export const ready = Module.ready
+
+// console.time('wasm load')
+// Module.postRun.push(() => {
+//   console.timeEnd('wasm load')
+// })
+
+export const ParseFlags = {
+  COLLAPSE_WHITESPACE:         0x0001, // In TEXT, collapse non-trivial whitespace into single ' '
+  PERMISSIVE_ATX_HEADERS:      0x0002, // Do not require space in ATX headers ( ###header )
+  PERMISSIVE_URL_AUTO_LINKS:   0x0004, // Recognize URLs as links even without <...>
+  PERMISSIVE_EMAIL_AUTO_LINKS: 0x0008, // Recognize e-mails as links even without <...>
+  NO_INDENTED_CODE_BLOCKS:     0x0010, // Disable indented code blocks. (Only fenced code works.)
+  NO_HTML_BLOCKS:              0x0020, // Disable raw HTML blocks.
+  NO_HTML_SPANS:               0x0040, // Disable raw HTML (inline).
+  TABLES:                      0x0100, // Enable tables extension.
+  STRIKETHROUGH:               0x0200, // Enable strikethrough extension.
+  PERMISSIVE_WWW_AUTOLINKS:    0x0400, // Enable WWW autolinks (without proto; just 'www.')
+  TASK_LISTS:                  0x0800, // Enable task list extension.
+  LATEX_MATH_SPANS:            0x1000, // Enable $ and $$ containing LaTeX equations.
+  WIKI_LINKS:                  0x2000, // Enable wiki links extension.
+
+  // Github style default flags
+  DEFAULT: 0x0001 | 0x0002 | 0x0004 | 0x0200 | 0x0100 | 0x0800,
+    // COLLAPSE_WHITESPACE
+    // PERMISSIVE_ATX_HEADERS
+    // PERMISSIVE_URL_AUTO_LINKS
+    // STRIKETHROUGH
+    // TABLES
+    // TASK_LISTS
+
+  NO_HTML: 0x0020 | 0x0040, // NO_HTML_BLOCKS | NO_HTML_SPANS
+}
+
+const OutputFlags = {
+  HTML: 1 << 0,  // Output HTML
+}
+
+const defaultOptions = {
+  parseFlags: ParseFlags.DEFAULT,
+
+  // how to format the output
+  format: "html",
+
+  // Return a view of heap memory as a Uint8Array, instead of a string.
+  //
+  // The returned Uint8Array is only valid until the next call to parse().
+  // If you need to keep the returned Uint8Array around, call Uint8Array.slice()
+  // to make a copy, as each call to parse() reuses the same underlying memory.
+  asMemoryView: false,
+}
+
+export function parse(source, options) {
+  options = options ? {__proto__:defaultOptions, ...options} : defaultOptions
+  let outflags = (0
+    | (options.format == "html" ? OutputFlags.HTML : 0)
+  )
+
+  let buf = typeof source == "string" ? utf8.encode(source) : source
+  let outbuf = withOutPtr(outptr => withTmpBytePtr(buf, (inptr, inlen) =>
+    _parseUTF8(inptr, inlen, options.parseFlags, outflags, outptr)
+  ))
+
+  // check for error and throw if needed
+  werrCheck()
+
+  // if (outbuf) {
+  //   console.log(utf8.decode(outbuf))
+  // }
+
+  if (options.asMemoryView) {
+    return outbuf
+  }
+  return utf8.decode(outbuf)
+}
diff --git a/src/md4c.c b/src/md4c.c
new file mode 100644
index 0000000..d5b077a
--- /dev/null
+++ b/src/md4c.c
@@ -0,0 +1,6286 @@
+/*
+ * MD4C: Markdown parser for C
+ * (http://github.com/mity/md4c)
+ *
+ * Copyright (c) 2016-2019 Martin Mitas
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "md4c.h"
+
+#include <limits.h>
+// #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+/*****************************
+ ***  Miscellaneous Stuff  ***
+ *****************************/
+
+#ifdef _MSC_VER
+    /* MSVC does not understand "inline" when building as pure C (not C++).
+     * However it understands "__inline" */
+    #ifndef __cplusplus
+        #define inline __inline
+    #endif
+#endif
+
+#ifdef _T
+    #undef _T
+#endif
+#if defined MD4C_USE_UTF16
+    #define _T(x)           L##x
+#else
+    #define _T(x)           x
+#endif
+
+/* Misc. macros. */
+#define SIZEOF_ARRAY(a)     (sizeof(a) / sizeof(a[0]))
+
+#define STRINGIZE_(x)       #x
+#define STRINGIZE(x)        STRINGIZE_(x)
+
+#ifndef TRUE
+    #define TRUE            1
+    #define FALSE           0
+#endif
+
+
+/************************
+ ***  Internal Types  ***
+ ************************/
+
+/* These are omnipresent so lets save some typing. */
+#define CHAR    MD_CHAR
+#define SZ      MD_SIZE
+#define OFF     MD_OFFSET
+
+typedef struct MD_MARK_tag MD_MARK;
+typedef struct MD_BLOCK_tag MD_BLOCK;
+typedef struct MD_CONTAINER_tag MD_CONTAINER;
+typedef struct MD_REF_DEF_tag MD_REF_DEF;
+
+
+/* During analyzes of inline marks, we need to manage some "mark chains",
+ * of (yet unresolved) openers. This structure holds start/end of the chain.
+ * The chain internals are then realized through MD_MARK::prev and ::next.
+ */
+typedef struct MD_MARKCHAIN_tag MD_MARKCHAIN;
+struct MD_MARKCHAIN_tag {
+    int head;   /* Index of first mark in the chain, or -1 if empty. */
+    int tail;   /* Index of last mark in the chain, or -1 if empty. */
+};
+
+/* Context propagated through all the parsing. */
+typedef struct MD_CTX_tag MD_CTX;
+struct MD_CTX_tag {
+    /* Immutable stuff (parameters of md_parse()). */
+    const CHAR* text;
+    SZ size;
+    MD_PARSER parser;
+    void* userdata;
+
+    /* When this is true, it allows some optimizations. */
+    int doc_ends_with_newline;
+
+    /* Helper temporary growing buffer. */
+    CHAR* buffer;
+    unsigned alloc_buffer;
+
+    /* Reference definitions. */
+    MD_REF_DEF* ref_defs;
+    int n_ref_defs;
+    int alloc_ref_defs;
+    void** ref_def_hashtable;
+    int ref_def_hashtable_size;
+
+    /* Stack of inline/span markers.
+     * This is only used for parsing a single block contents but by storing it
+     * here we may reuse the stack for subsequent blocks; i.e. we have fewer
+     * (re)allocations. */
+    MD_MARK* marks;
+    int n_marks;
+    int alloc_marks;
+
+#if defined MD4C_USE_UTF16
+    char mark_char_map[128];
+#else
+    char mark_char_map[256];
+#endif
+
+    /* For resolving of inline spans. */
+    MD_MARKCHAIN mark_chains[12];
+#define PTR_CHAIN                               ctx->mark_chains[0]
+#define TABLECELLBOUNDARIES                     ctx->mark_chains[1]
+#define ASTERISK_OPENERS_extraword_mod3_0       ctx->mark_chains[2]
+#define ASTERISK_OPENERS_extraword_mod3_1       ctx->mark_chains[3]
+#define ASTERISK_OPENERS_extraword_mod3_2       ctx->mark_chains[4]
+#define ASTERISK_OPENERS_intraword_mod3_0       ctx->mark_chains[5]
+#define ASTERISK_OPENERS_intraword_mod3_1       ctx->mark_chains[6]
+#define ASTERISK_OPENERS_intraword_mod3_2       ctx->mark_chains[7]
+#define UNDERSCORE_OPENERS                      ctx->mark_chains[8]
+#define TILDE_OPENERS                           ctx->mark_chains[9]
+#define BRACKET_OPENERS                         ctx->mark_chains[10]
+#define DOLLAR_OPENERS                          ctx->mark_chains[11]
+#define OPENERS_CHAIN_FIRST                     2
+#define OPENERS_CHAIN_LAST                      11
+
+    int n_table_cell_boundaries;
+
+    /* For resolving links. */
+    int unresolved_link_head;
+    int unresolved_link_tail;
+
+    /* For resolving raw HTML. */
+    OFF html_comment_horizon;
+    OFF html_proc_instr_horizon;
+    OFF html_decl_horizon;
+    OFF html_cdata_horizon;
+
+    /* For block analysis.
+     * Notes:
+     *   -- It holds MD_BLOCK as well as MD_LINE structures. After each
+     *      MD_BLOCK, its (multiple) MD_LINE(s) follow.
+     *   -- For MD_BLOCK_HTML and MD_BLOCK_CODE, MD_VERBATIMLINE(s) are used
+     *      instead of MD_LINE(s).
+     */
+    void* block_bytes;
+    MD_BLOCK* current_block;
+    int n_block_bytes;
+    int alloc_block_bytes;
+
+    /* For container block analysis. */
+    MD_CONTAINER* containers;
+    int n_containers;
+    int alloc_containers;
+
+    /* Minimal indentation to call the block "indented code block". */
+    unsigned code_indent_offset;
+
+    /* Contextual info for line analysis. */
+    SZ code_fence_length;   /* For checking closing fence length. */
+    int html_block_type;    /* For checking closing raw HTML condition. */
+    int last_line_has_list_loosening_effect;
+    int last_list_item_starts_with_two_blank_lines;
+};
+
+enum MD_LINETYPE_tag {
+    MD_LINE_BLANK,
+    MD_LINE_HR,
+    MD_LINE_ATXHEADER,
+    MD_LINE_SETEXTHEADER,
+    MD_LINE_SETEXTUNDERLINE,
+    MD_LINE_INDENTEDCODE,
+    MD_LINE_FENCEDCODE,
+    MD_LINE_HTML,
+    MD_LINE_TEXT,
+    MD_LINE_TABLE,
+    MD_LINE_TABLEUNDERLINE
+};
+typedef enum MD_LINETYPE_tag MD_LINETYPE;
+
+typedef struct MD_LINE_ANALYSIS_tag MD_LINE_ANALYSIS;
+struct MD_LINE_ANALYSIS_tag {
+    MD_LINETYPE type    : 16;
+    unsigned data       : 16;
+    OFF beg;
+    OFF end;
+    unsigned indent;        /* Indentation level. */
+    unsigned total_indent;  /* Total indent in characters. */
+};
+
+typedef struct MD_LINE_tag MD_LINE;
+struct MD_LINE_tag {
+    OFF beg;
+    OFF end;
+    unsigned total_indent;  /* Total indent in characters. */
+};
+
+typedef struct MD_VERBATIMLINE_tag MD_VERBATIMLINE;
+struct MD_VERBATIMLINE_tag {
+    OFF beg;
+    OFF end;
+    OFF indent;
+};
+
+
+/*******************
+ ***  Debugging  ***
+ *******************/
+
+// change to 0 to disable MD_PARSER.debug_log
+#define WITH_PARSER_DEBUG_LOG 0
+
+#if WITH_PARSER_DEBUG_LOG
+#define MD_LOG(msg)                                                     \
+    do {                                                                \
+        if(ctx->parser.debug_log != NULL)                               \
+            ctx->parser.debug_log((msg), ctx->userdata);                \
+    } while(0)
+#else
+#define MD_LOG(msg) do{}while(0)
+#endif
+
+
+#ifdef DEBUG
+    #define MD_ASSERT(cond)                                             \
+            do {                                                        \
+                if(!(cond)) {                                           \
+                    MD_LOG(__FILE__ ":" STRINGIZE(__LINE__) ": "        \
+                           "Assertion '" STRINGIZE(cond) "' failed.");  \
+                    exit(1);                                            \
+                }                                                       \
+            } while(0)
+
+    #define MD_UNREACHABLE()        MD_ASSERT(1 == 0)
+#else
+    #ifdef __GNUC__
+        #define MD_ASSERT(cond)     do { if(!(cond)) __builtin_unreachable(); } while(0)
+        #define MD_UNREACHABLE()    do { __builtin_unreachable(); } while(0)
+    #elif defined _MSC_VER  &&  _MSC_VER > 120
+        #define MD_ASSERT(cond)     do { __assume(cond); } while(0)
+        #define MD_UNREACHABLE()    do { __assume(0); } while(0)
+    #else
+        #define MD_ASSERT(cond)     do {} while(0)
+        #define MD_UNREACHABLE()    do {} while(0)
+    #endif
+#endif
+
+
+/*****************
+ ***  Helpers  ***
+ *****************/
+
+/* Character accessors. */
+#define CH(off)                 (ctx->text[(off)])
+#define STR(off)                (ctx->text + (off))
+
+/* Character classification.
+ * Note we assume ASCII compatibility of code points < 128 here. */
+#define ISIN_(ch, ch_min, ch_max)       ((ch_min) <= (unsigned)(ch) && (unsigned)(ch) <= (ch_max))
+#define ISANYOF_(ch, palette)           (md_strchr((palette), (ch)) != NULL)
+#define ISANYOF2_(ch, ch1, ch2)         ((ch) == (ch1) || (ch) == (ch2))
+#define ISANYOF3_(ch, ch1, ch2, ch3)    ((ch) == (ch1) || (ch) == (ch2) || (ch) == (ch3))
+#define ISASCII_(ch)                    ((unsigned)(ch) <= 127)
+#define ISBLANK_(ch)                    (ISANYOF2_((ch), _T(' '), _T('\t')))
+#define ISNEWLINE_(ch)                  (ISANYOF2_((ch), _T('\r'), _T('\n')))
+#define ISWHITESPACE_(ch)               (ISBLANK_(ch) || ISANYOF2_((ch), _T('\v'), _T('\f')))
+#define ISCNTRL_(ch)                    ((unsigned)(ch) <= 31 || (unsigned)(ch) == 127)
+#define ISPUNCT_(ch)                    (ISIN_(ch, 33, 47) || ISIN_(ch, 58, 64) || ISIN_(ch, 91, 96) || ISIN_(ch, 123, 126))
+#define ISUPPER_(ch)                    (ISIN_(ch, _T('A'), _T('Z')))
+#define ISLOWER_(ch)                    (ISIN_(ch, _T('a'), _T('z')))
+#define ISALPHA_(ch)                    (ISUPPER_(ch) || ISLOWER_(ch))
+#define ISDIGIT_(ch)                    (ISIN_(ch, _T('0'), _T('9')))
+#define ISXDIGIT_(ch)                   (ISDIGIT_(ch) || ISIN_(ch, _T('A'), _T('F')) || ISIN_(ch, _T('a'), _T('f')))
+#define ISALNUM_(ch)                    (ISALPHA_(ch) || ISDIGIT_(ch))
+
+#define ISANYOF(off, palette)           ISANYOF_(CH(off), (palette))
+#define ISANYOF2(off, ch1, ch2)         ISANYOF2_(CH(off), (ch1), (ch2))
+#define ISANYOF3(off, ch1, ch2, ch3)    ISANYOF3_(CH(off), (ch1), (ch2), (ch3))
+#define ISASCII(off)                    ISASCII_(CH(off))
+#define ISBLANK(off)                    ISBLANK_(CH(off))
+#define ISNEWLINE(off)                  ISNEWLINE_(CH(off))
+#define ISWHITESPACE(off)               ISWHITESPACE_(CH(off))
+#define ISCNTRL(off)                    ISCNTRL_(CH(off))
+#define ISPUNCT(off)                    ISPUNCT_(CH(off))
+#define ISUPPER(off)                    ISUPPER_(CH(off))
+#define ISLOWER(off)                    ISLOWER_(CH(off))
+#define ISALPHA(off)                    ISALPHA_(CH(off))
+#define ISDIGIT(off)                    ISDIGIT_(CH(off))
+#define ISXDIGIT(off)                   ISXDIGIT_(CH(off))
+#define ISALNUM(off)                    ISALNUM_(CH(off))
+static inline const CHAR*
+md_strchr(const CHAR* str, CHAR ch)
+{
+    OFF i;
+    for(i = 0; str[i] != _T('\0'); i++) {
+        if(ch == str[i])
+            return (str + i);
+    }
+    return NULL;
+}
+
+/* Case insensitive check of string equality. */
+static inline int
+md_ascii_case_eq(const CHAR* s1, const CHAR* s2, SZ n)
+{
+    OFF i;
+    for(i = 0; i < n; i++) {
+        CHAR ch1 = s1[i];
+        CHAR ch2 = s2[i];
+
+        if(ISLOWER_(ch1))
+            ch1 += ('A'-'a');
+        if(ISLOWER_(ch2))
+            ch2 += ('A'-'a');
+        if(ch1 != ch2)
+            return FALSE;
+    }
+    return TRUE;
+}
+
+static inline int
+md_ascii_eq(const CHAR* s1, const CHAR* s2, SZ n)
+{
+    return memcmp(s1, s2, n * sizeof(CHAR)) == 0;
+}
+
+static int
+md_text_with_null_replacement(MD_CTX* ctx, MD_TEXTTYPE type, const CHAR* str, SZ size)
+{
+    OFF off = 0;
+    int ret = 0;
+
+    while(1) {
+        while(off < size  &&  str[off] != _T('\0'))
+            off++;
+
+        if(off > 0) {
+            ret = ctx->parser.text(type, str, off, ctx->userdata);
+            if(ret != 0)
+                return ret;
+
+            str += off;
+            size -= off;
+            off = 0;
+        }
+
+        if(off >= size)
+            return 0;
+
+        ret = ctx->parser.text(MD_TEXT_NULLCHAR, _T(""), 1, ctx->userdata);
+        if(ret != 0)
+            return ret;
+        off++;
+    }
+}
+
+
+#define MD_CHECK(func)                                                  \
+    do {                                                                \
+        ret = (func);                                                   \
+        if(ret < 0)                                                     \
+            goto abort;                                                 \
+    } while(0)
+
+
+#define MD_TEMP_BUFFER(sz)                                              \
+    do {                                                                \
+        if(sz > ctx->alloc_buffer) {                                    \
+            CHAR* new_buffer;                                           \
+            SZ new_size = ((sz) + (sz) / 2 + 128) & ~127;               \
+                                                                        \
+            new_buffer = realloc(ctx->buffer, new_size);                \
+            if(new_buffer == NULL) {                                    \
+                MD_LOG("realloc() failed.");                            \
+                ret = -1;                                               \
+                goto abort;                                             \
+            }                                                           \
+                                                                        \
+            ctx->buffer = new_buffer;                                   \
+            ctx->alloc_buffer = new_size;                               \
+        }                                                               \
+    } while(0)
+
+
+#define MD_ENTER_BLOCK(type, arg)                                       \
+    do {                                                                \
+        ret = ctx->parser.enter_block((type), (arg), ctx->userdata);         \
+        if(ret != 0) {                                                  \
+            MD_LOG("Aborted from enter_block() callback.");             \
+            goto abort;                                                 \
+        }                                                               \
+    } while(0)
+
+#define MD_LEAVE_BLOCK(type, arg)                                       \
+    do {                                                                \
+        ret = ctx->parser.leave_block((type), (arg), ctx->userdata);         \
+        if(ret != 0) {                                                  \
+            MD_LOG("Aborted from leave_block() callback.");             \
+            goto abort;                                                 \
+        }                                                               \
+    } while(0)
+
+#define MD_ENTER_SPAN(type, arg)                                        \
+    do {                                                                \
+        ret = ctx->parser.enter_span((type), (arg), ctx->userdata);          \
+        if(ret != 0) {                                                  \
+            MD_LOG("Aborted from enter_span() callback.");              \
+            goto abort;                                                 \
+        }                                                               \
+    } while(0)
+
+#define MD_LEAVE_SPAN(type, arg)                                        \
+    do {                                                                \
+        ret = ctx->parser.leave_span((type), (arg), ctx->userdata);          \
+        if(ret != 0) {                                                  \
+            MD_LOG("Aborted from leave_span() callback.");              \
+            goto abort;                                                 \
+        }                                                               \
+    } while(0)
+
+#define MD_TEXT(type, str, size)                                        \
+    do {                                                                \
+        if(size > 0) {                                                  \
+            ret = ctx->parser.text((type), (str), (size), ctx->userdata);    \
+            if(ret != 0) {                                              \
+                MD_LOG("Aborted from text() callback.");                \
+                goto abort;                                             \
+            }                                                           \
+        }                                                               \
+    } while(0)
+
+#define MD_TEXT_INSECURE(type, str, size)                               \
+    do {                                                                \
+        if(size > 0) {                                                  \
+            ret = md_text_with_null_replacement(ctx, type, str, size);  \
+            if(ret != 0) {                                              \
+                MD_LOG("Aborted from text() callback.");                \
+                goto abort;                                             \
+            }                                                           \
+        }                                                               \
+    } while(0)
+
+
+
+/*************************
+ ***  Unicode Support  ***
+ *************************/
+
+typedef struct MD_UNICODE_FOLD_INFO_tag MD_UNICODE_FOLD_INFO;
+struct MD_UNICODE_FOLD_INFO_tag {
+    unsigned codepoints[3];
+    int n_codepoints;
+};
+
+
+#if defined MD4C_USE_UTF16 || defined MD4C_USE_UTF8
+    /* Binary search over sorted "map" of codepoints. Consecutive sequences
+     * of codepoints may be encoded in the map by just using the
+     * (MIN_CODEPOINT | 0x40000000) and (MAX_CODEPOINT | 0x80000000).
+     *
+     * Returns index of the found record in the map (in the case of ranges,
+     * the minimal value is used); or -1 on failure. */
+    static int
+    md_unicode_bsearch__(unsigned codepoint, const unsigned* map, size_t map_size)
+    {
+        int beg, end;
+        int pivot_beg, pivot_end;
+
+        beg = 0;
+        end = (int) map_size-1;
+        while(beg <= end) {
+            /* Pivot may be a range, not just a single value. */
+            pivot_beg = pivot_end = (beg + end) / 2;
+            if(map[pivot_end] & 0x40000000)
+                pivot_end++;
+            if(map[pivot_beg] & 0x80000000)
+                pivot_beg--;
+
+            if(codepoint < (map[pivot_beg] & 0x00ffffff))
+                end = pivot_beg - 1;
+            else if(codepoint > (map[pivot_end] & 0x00ffffff))
+                beg = pivot_end + 1;
+            else
+                return pivot_beg;
+        }
+
+        return -1;
+    }
+
+    static int
+    md_is_unicode_whitespace__(unsigned codepoint)
+    {
+#define R(cp_min, cp_max)   ((cp_min) | 0x40000000), ((cp_max) | 0x80000000)
+#define S(cp)               (cp)
+        /* Unicode "Zs" category.
+         * (generated by scripts/build_whitespace_map.py) */
+        static const unsigned WHITESPACE_MAP[] = {
+            S(0x0020), S(0x00a0), S(0x1680), R(0x2000,0x200a), S(0x202f), S(0x205f), S(0x3000)
+        };
+#undef R
+#undef S
+
+        /* The ASCII ones are the most frequently used ones, also CommonMark
+         * specification requests few more in this range. */
+        if(codepoint <= 0x7f)
+            return ISWHITESPACE_(codepoint);
+
+        return (md_unicode_bsearch__(codepoint, WHITESPACE_MAP, SIZEOF_ARRAY(WHITESPACE_MAP)) >= 0);
+    }
+
+    static int
+    md_is_unicode_punct__(unsigned codepoint)
+    {
+#define R(cp_min, cp_max)   ((cp_min) | 0x40000000), ((cp_max) | 0x80000000)
+#define S(cp)               (cp)
+        /* Unicode "Pc", "Pd", "Pe", "Pf", "Pi", "Po", "Ps" categories.
+         * (generated by scripts/build_punct_map.py) */
+        static const unsigned PUNCT_MAP[] = {
+            R(0x0021,0x0023), R(0x0025,0x002a), R(0x002c,0x002f), R(0x003a,0x003b), R(0x003f,0x0040),
+            R(0x005b,0x005d), S(0x005f), S(0x007b), S(0x007d), S(0x00a1), S(0x00a7), S(0x00ab), R(0x00b6,0x00b7),
+            S(0x00bb), S(0x00bf), S(0x037e), S(0x0387), R(0x055a,0x055f), R(0x0589,0x058a), S(0x05be), S(0x05c0),
+            S(0x05c3), S(0x05c6), R(0x05f3,0x05f4), R(0x0609,0x060a), R(0x060c,0x060d), S(0x061b), R(0x061e,0x061f),
+            R(0x066a,0x066d), S(0x06d4), R(0x0700,0x070d), R(0x07f7,0x07f9), R(0x0830,0x083e), S(0x085e),
+            R(0x0964,0x0965), S(0x0970), S(0x09fd), S(0x0a76), S(0x0af0), S(0x0c77), S(0x0c84), S(0x0df4), S(0x0e4f),
+            R(0x0e5a,0x0e5b), R(0x0f04,0x0f12), S(0x0f14), R(0x0f3a,0x0f3d), S(0x0f85), R(0x0fd0,0x0fd4),
+            R(0x0fd9,0x0fda), R(0x104a,0x104f), S(0x10fb), R(0x1360,0x1368), S(0x1400), S(0x166e), R(0x169b,0x169c),
+            R(0x16eb,0x16ed), R(0x1735,0x1736), R(0x17d4,0x17d6), R(0x17d8,0x17da), R(0x1800,0x180a),
+            R(0x1944,0x1945), R(0x1a1e,0x1a1f), R(0x1aa0,0x1aa6), R(0x1aa8,0x1aad), R(0x1b5a,0x1b60),
+            R(0x1bfc,0x1bff), R(0x1c3b,0x1c3f), R(0x1c7e,0x1c7f), R(0x1cc0,0x1cc7), S(0x1cd3), R(0x2010,0x2027),
+            R(0x2030,0x2043), R(0x2045,0x2051), R(0x2053,0x205e), R(0x207d,0x207e), R(0x208d,0x208e),
+            R(0x2308,0x230b), R(0x2329,0x232a), R(0x2768,0x2775), R(0x27c5,0x27c6), R(0x27e6,0x27ef),
+            R(0x2983,0x2998), R(0x29d8,0x29db), R(0x29fc,0x29fd), R(0x2cf9,0x2cfc), R(0x2cfe,0x2cff), S(0x2d70),
+            R(0x2e00,0x2e2e), R(0x2e30,0x2e4f), R(0x3001,0x3003), R(0x3008,0x3011), R(0x3014,0x301f), S(0x3030),
+            S(0x303d), S(0x30a0), S(0x30fb), R(0xa4fe,0xa4ff), R(0xa60d,0xa60f), S(0xa673), S(0xa67e),
+            R(0xa6f2,0xa6f7), R(0xa874,0xa877), R(0xa8ce,0xa8cf), R(0xa8f8,0xa8fa), S(0xa8fc), R(0xa92e,0xa92f),
+            S(0xa95f), R(0xa9c1,0xa9cd), R(0xa9de,0xa9df), R(0xaa5c,0xaa5f), R(0xaade,0xaadf), R(0xaaf0,0xaaf1),
+            S(0xabeb), R(0xfd3e,0xfd3f), R(0xfe10,0xfe19), R(0xfe30,0xfe52), R(0xfe54,0xfe61), S(0xfe63), S(0xfe68),
+            R(0xfe6a,0xfe6b), R(0xff01,0xff03), R(0xff05,0xff0a), R(0xff0c,0xff0f), R(0xff1a,0xff1b),
+            R(0xff1f,0xff20), R(0xff3b,0xff3d), S(0xff3f), S(0xff5b), S(0xff5d), R(0xff5f,0xff65), R(0x10100,0x10102),
+            S(0x1039f), S(0x103d0), S(0x1056f), S(0x10857), S(0x1091f), S(0x1093f), R(0x10a50,0x10a58), S(0x10a7f),
+            R(0x10af0,0x10af6), R(0x10b39,0x10b3f), R(0x10b99,0x10b9c), R(0x10f55,0x10f59), R(0x11047,0x1104d),
+            R(0x110bb,0x110bc), R(0x110be,0x110c1), R(0x11140,0x11143), R(0x11174,0x11175), R(0x111c5,0x111c8),
+            S(0x111cd), S(0x111db), R(0x111dd,0x111df), R(0x11238,0x1123d), S(0x112a9), R(0x1144b,0x1144f),
+            S(0x1145b), S(0x1145d), S(0x114c6), R(0x115c1,0x115d7), R(0x11641,0x11643), R(0x11660,0x1166c),
+            R(0x1173c,0x1173e), S(0x1183b), S(0x119e2), R(0x11a3f,0x11a46), R(0x11a9a,0x11a9c), R(0x11a9e,0x11aa2),
+            R(0x11c41,0x11c45), R(0x11c70,0x11c71), R(0x11ef7,0x11ef8), S(0x11fff), R(0x12470,0x12474),
+            R(0x16a6e,0x16a6f), S(0x16af5), R(0x16b37,0x16b3b), S(0x16b44), R(0x16e97,0x16e9a), S(0x16fe2),
+            S(0x1bc9f), R(0x1da87,0x1da8b), R(0x1e95e,0x1e95f)
+        };
+#undef R
+#undef S
+
+        /* The ASCII ones are the most frequently used ones, also CommonMark
+         * specification requests few more in this range. */
+        if(codepoint <= 0x7f)
+            return ISPUNCT_(codepoint);
+
+        return (md_unicode_bsearch__(codepoint, PUNCT_MAP, SIZEOF_ARRAY(PUNCT_MAP)) >= 0);
+    }
+
+    static void
+    md_get_unicode_fold_info(unsigned codepoint, MD_UNICODE_FOLD_INFO* info)
+    {
+#define R(cp_min, cp_max)   ((cp_min) | 0x40000000), ((cp_max) | 0x80000000)
+#define S(cp)               (cp)
+        /* Unicode "Pc", "Pd", "Pe", "Pf", "Pi", "Po", "Ps" categories.
+         * (generated by scripts/build_punct_map.py) */
+        static const unsigned FOLD_MAP_1[] = {
+            R(0x0041,0x005a), S(0x00b5), R(0x00c0,0x00d6), R(0x00d8,0x00de), R(0x0100,0x012e), R(0x0132,0x0136),
+            R(0x0139,0x0147), R(0x014a,0x0176), S(0x0178), R(0x0179,0x017d), S(0x017f), S(0x0181), S(0x0182),
+            S(0x0186), S(0x0187), S(0x0189), S(0x018b), S(0x018e), S(0x018f), S(0x0190), S(0x0191), S(0x0193),
+            S(0x0194), S(0x0196), S(0x0197), S(0x0198), S(0x019c), S(0x019d), S(0x019f), R(0x01a0,0x01a4), S(0x01a6),
+            S(0x01a7), S(0x01a9), S(0x01ac), S(0x01ae), S(0x01af), S(0x01b1), S(0x01b3), S(0x01b7), S(0x01b8),
+            S(0x01bc), S(0x01c4), S(0x01c5), S(0x01c7), S(0x01c8), S(0x01ca), R(0x01cb,0x01db), R(0x01de,0x01ee),
+            S(0x01f1), S(0x01f2), S(0x01f6), S(0x01f7), R(0x01f8,0x021e), S(0x0220), R(0x0222,0x0232), S(0x023a),
+            S(0x023b), S(0x023d), S(0x023e), S(0x0241), S(0x0243), S(0x0244), S(0x0245), R(0x0246,0x024e), S(0x0345),
+            S(0x0370), S(0x0376), S(0x037f), S(0x0386), R(0x0388,0x038a), S(0x038c), S(0x038e), R(0x0391,0x03a1),
+            R(0x03a3,0x03ab), S(0x03c2), S(0x03cf), S(0x03d0), S(0x03d1), S(0x03d5), S(0x03d6), R(0x03d8,0x03ee),
+            S(0x03f0), S(0x03f1), S(0x03f4), S(0x03f5), S(0x03f7), S(0x03f9), S(0x03fa), R(0x03fd,0x03ff),
+            R(0x0400,0x040f), R(0x0410,0x042f), R(0x0460,0x0480), R(0x048a,0x04be), S(0x04c0), R(0x04c1,0x04cd),
+            R(0x04d0,0x052e), R(0x0531,0x0556), R(0x10a0,0x10c5), S(0x10c7), S(0x10cd), R(0x13f8,0x13fd), S(0x1c80),
+            S(0x1c81), S(0x1c82), S(0x1c83), S(0x1c85), S(0x1c86), S(0x1c87), S(0x1c88), R(0x1c90,0x1cba),
+            R(0x1cbd,0x1cbf), R(0x1e00,0x1e94), S(0x1e9b), R(0x1ea0,0x1efe), R(0x1f08,0x1f0f), R(0x1f18,0x1f1d),
+            R(0x1f28,0x1f2f), R(0x1f38,0x1f3f), R(0x1f48,0x1f4d), S(0x1f59), S(0x1f5b), S(0x1f5d), S(0x1f5f),
+            R(0x1f68,0x1f6f), S(0x1fb8), S(0x1fba), S(0x1fbe), R(0x1fc8,0x1fcb), S(0x1fd8), S(0x1fda), S(0x1fe8),
+            S(0x1fea), S(0x1fec), S(0x1ff8), S(0x1ffa), S(0x2126), S(0x212a), S(0x212b), S(0x2132), R(0x2160,0x216f),
+            S(0x2183), R(0x24b6,0x24cf), R(0x2c00,0x2c2e), S(0x2c60), S(0x2c62), S(0x2c63), S(0x2c64),
+            R(0x2c67,0x2c6b), S(0x2c6d), S(0x2c6e), S(0x2c6f), S(0x2c70), S(0x2c72), S(0x2c75), S(0x2c7e),
+            R(0x2c80,0x2ce2), S(0x2ceb), S(0x2cf2), R(0xa640,0xa66c), R(0xa680,0xa69a), R(0xa722,0xa72e),
+            R(0xa732,0xa76e), S(0xa779), S(0xa77d), R(0xa77e,0xa786), S(0xa78b), S(0xa78d), S(0xa790),
+            R(0xa796,0xa7a8), S(0xa7aa), S(0xa7ab), S(0xa7ac), S(0xa7ad), S(0xa7ae), S(0xa7b0), S(0xa7b1), S(0xa7b2),
+            S(0xa7b3), R(0xa7b4,0xa7be), S(0xa7c2), S(0xa7c4), S(0xa7c5), S(0xa7c6), R(0xab70,0xabbf),
+            R(0xff21,0xff3a), R(0x10400,0x10427), R(0x104b0,0x104d3), R(0x10c80,0x10cb2), R(0x118a0,0x118bf),
+            R(0x16e40,0x16e5f), R(0x1e900,0x1e921)
+        };
+        static const unsigned FOLD_MAP_1_DATA[] = {
+            0x0061, 0x007a, 0x03bc, 0x00e0, 0x00f6, 0x00f8, 0x00fe, 0x0101, 0x012f, 0x0133, 0x0137, 0x013a, 0x0148,
+            0x014b, 0x0177, 0x00ff, 0x017a, 0x017e, 0x0073, 0x0253, 0x0183, 0x0254, 0x0188, 0x0256, 0x018c, 0x01dd,
+            0x0259, 0x025b, 0x0192, 0x0260, 0x0263, 0x0269, 0x0268, 0x0199, 0x026f, 0x0272, 0x0275, 0x01a1, 0x01a5,
+            0x0280, 0x01a8, 0x0283, 0x01ad, 0x0288, 0x01b0, 0x028a, 0x01b4, 0x0292, 0x01b9, 0x01bd, 0x01c6, 0x01c6,
+            0x01c9, 0x01c9, 0x01cc, 0x01cc, 0x01dc, 0x01df, 0x01ef, 0x01f3, 0x01f3, 0x0195, 0x01bf, 0x01f9, 0x021f,
+            0x019e, 0x0223, 0x0233, 0x2c65, 0x023c, 0x019a, 0x2c66, 0x0242, 0x0180, 0x0289, 0x028c, 0x0247, 0x024f,
+            0x03b9, 0x0371, 0x0377, 0x03f3, 0x03ac, 0x03ad, 0x03af, 0x03cc, 0x03cd, 0x03b1, 0x03c1, 0x03c3, 0x03cb,
+            0x03c3, 0x03d7, 0x03b2, 0x03b8, 0x03c6, 0x03c0, 0x03d9, 0x03ef, 0x03ba, 0x03c1, 0x03b8, 0x03b5, 0x03f8,
+            0x03f2, 0x03fb, 0x037b, 0x037d, 0x0450, 0x045f, 0x0430, 0x044f, 0x0461, 0x0481, 0x048b, 0x04bf, 0x04cf,
+            0x04c2, 0x04ce, 0x04d1, 0x052f, 0x0561, 0x0586, 0x2d00, 0x2d25, 0x2d27, 0x2d2d, 0x13f0, 0x13f5, 0x0432,
+            0x0434, 0x043e, 0x0441, 0x0442, 0x044a, 0x0463, 0xa64b, 0x10d0, 0x10fa, 0x10fd, 0x10ff, 0x1e01, 0x1e95,
+            0x1e61, 0x1ea1, 0x1eff, 0x1f00, 0x1f07, 0x1f10, 0x1f15, 0x1f20, 0x1f27, 0x1f30, 0x1f37, 0x1f40, 0x1f45,
+            0x1f51, 0x1f53, 0x1f55, 0x1f57, 0x1f60, 0x1f67, 0x1fb0, 0x1f70, 0x03b9, 0x1f72, 0x1f75, 0x1fd0, 0x1f76,
+            0x1fe0, 0x1f7a, 0x1fe5, 0x1f78, 0x1f7c, 0x03c9, 0x006b, 0x00e5, 0x214e, 0x2170, 0x217f, 0x2184, 0x24d0,
+            0x24e9, 0x2c30, 0x2c5e, 0x2c61, 0x026b, 0x1d7d, 0x027d, 0x2c68, 0x2c6c, 0x0251, 0x0271, 0x0250, 0x0252,
+            0x2c73, 0x2c76, 0x023f, 0x2c81, 0x2ce3, 0x2cec, 0x2cf3, 0xa641, 0xa66d, 0xa681, 0xa69b, 0xa723, 0xa72f,
+            0xa733, 0xa76f, 0xa77a, 0x1d79, 0xa77f, 0xa787, 0xa78c, 0x0265, 0xa791, 0xa797, 0xa7a9, 0x0266, 0x025c,
+            0x0261, 0x026c, 0x026a, 0x029e, 0x0287, 0x029d, 0xab53, 0xa7b5, 0xa7bf, 0xa7c3, 0xa794, 0x0282, 0x1d8e,
+            0x13a0, 0x13ef, 0xff41, 0xff5a, 0x10428, 0x1044f, 0x104d8, 0x104fb, 0x10cc0, 0x10cf2, 0x118c0, 0x118df,
+            0x16e60, 0x16e7f, 0x1e922, 0x1e943
+        };
+        static const unsigned FOLD_MAP_2[] = {
+            S(0x00df), S(0x0130), S(0x0149), S(0x01f0), S(0x0587), S(0x1e96), S(0x1e97), S(0x1e98), S(0x1e99),
+            S(0x1e9a), S(0x1e9e), S(0x1f50), R(0x1f80,0x1f87), R(0x1f88,0x1f8f), R(0x1f90,0x1f97), R(0x1f98,0x1f9f),
+            R(0x1fa0,0x1fa7), R(0x1fa8,0x1faf), S(0x1fb2), S(0x1fb3), S(0x1fb4), S(0x1fb6), S(0x1fbc), S(0x1fc2),
+            S(0x1fc3), S(0x1fc4), S(0x1fc6), S(0x1fcc), S(0x1fd6), S(0x1fe4), S(0x1fe6), S(0x1ff2), S(0x1ff3),
+            S(0x1ff4), S(0x1ff6), S(0x1ffc), S(0xfb00), S(0xfb01), S(0xfb02), S(0xfb05), S(0xfb06), S(0xfb13),
+            S(0xfb14), S(0xfb15), S(0xfb16), S(0xfb17)
+        };
+        static const unsigned FOLD_MAP_2_DATA[] = {
+            0x0073,0x0073, 0x0069,0x0307, 0x02bc,0x006e, 0x006a,0x030c, 0x0565,0x0582, 0x0068,0x0331, 0x0074,0x0308,
+            0x0077,0x030a, 0x0079,0x030a, 0x0061,0x02be, 0x0073,0x0073, 0x03c5,0x0313, 0x1f00,0x03b9, 0x1f07,0x03b9,
+            0x1f00,0x03b9, 0x1f07,0x03b9, 0x1f20,0x03b9, 0x1f27,0x03b9, 0x1f20,0x03b9, 0x1f27,0x03b9, 0x1f60,0x03b9,
+            0x1f67,0x03b9, 0x1f60,0x03b9, 0x1f67,0x03b9, 0x1f70,0x03b9, 0x03b1,0x03b9, 0x03ac,0x03b9, 0x03b1,0x0342,
+            0x03b1,0x03b9, 0x1f74,0x03b9, 0x03b7,0x03b9, 0x03ae,0x03b9, 0x03b7,0x0342, 0x03b7,0x03b9, 0x03b9,0x0342,
+            0x03c1,0x0313, 0x03c5,0x0342, 0x1f7c,0x03b9, 0x03c9,0x03b9, 0x03ce,0x03b9, 0x03c9,0x0342, 0x03c9,0x03b9,
+            0x0066,0x0066, 0x0066,0x0069, 0x0066,0x006c, 0x0073,0x0074, 0x0073,0x0074, 0x0574,0x0576, 0x0574,0x0565,
+            0x0574,0x056b, 0x057e,0x0576, 0x0574,0x056d
+        };
+        static const unsigned FOLD_MAP_3[] = {
+            S(0x0390), S(0x03b0), S(0x1f52), S(0x1f54), S(0x1f56), S(0x1fb7), S(0x1fc7), S(0x1fd2), S(0x1fd3),
+            S(0x1fd7), S(0x1fe2), S(0x1fe3), S(0x1fe7), S(0x1ff7), S(0xfb03), S(0xfb04)
+        };
+        static const unsigned FOLD_MAP_3_DATA[] = {
+            0x03b9,0x0308,0x0301, 0x03c5,0x0308,0x0301, 0x03c5,0x0313,0x0300, 0x03c5,0x0313,0x0301,
+            0x03c5,0x0313,0x0342, 0x03b1,0x0342,0x03b9, 0x03b7,0x0342,0x03b9, 0x03b9,0x0308,0x0300,
+            0x03b9,0x0308,0x0301, 0x03b9,0x0308,0x0342, 0x03c5,0x0308,0x0300, 0x03c5,0x0308,0x0301,
+            0x03c5,0x0308,0x0342, 0x03c9,0x0342,0x03b9, 0x0066,0x0066,0x0069, 0x0066,0x0066,0x006c
+        };
+#undef R
+#undef S
+        static const struct {
+            const unsigned* map;
+            const unsigned* data;
+            size_t map_size;
+            int n_codepoints;
+        } FOLD_MAP_LIST[] = {
+            { FOLD_MAP_1, FOLD_MAP_1_DATA, SIZEOF_ARRAY(FOLD_MAP_1), 1 },
+            { FOLD_MAP_2, FOLD_MAP_2_DATA, SIZEOF_ARRAY(FOLD_MAP_2), 2 },
+            { FOLD_MAP_3, FOLD_MAP_3_DATA, SIZEOF_ARRAY(FOLD_MAP_3), 3 }
+        };
+
+        int i;
+
+        /* Fast path for ASCII characters. */
+        if(codepoint <= 0x7f) {
+            info->codepoints[0] = codepoint;
+            if(ISUPPER_(codepoint))
+                info->codepoints[0] += 'a' - 'A';
+            info->n_codepoints = 1;
+            return;
+        }
+
+        /* Try to locate the codepoint in any of the maps. */
+        for(i = 0; i < (int) SIZEOF_ARRAY(FOLD_MAP_LIST); i++) {
+            int index;
+
+            index = md_unicode_bsearch__(codepoint, FOLD_MAP_LIST[i].map, FOLD_MAP_LIST[i].map_size);
+            if(index >= 0) {
+                /* Found the mapping. */
+                int n_codepoints = FOLD_MAP_LIST[i].n_codepoints;
+                const unsigned* map = FOLD_MAP_LIST[i].map;
+                const unsigned* codepoints = FOLD_MAP_LIST[i].data + (index * n_codepoints);
+
+                memcpy(info->codepoints, codepoints, sizeof(unsigned) * n_codepoints);
+                info->n_codepoints = n_codepoints;
+
+                if(FOLD_MAP_LIST[i].map[index] != codepoint) {
+                    /* The found mapping maps whole range of codepoints,
+                     * i.e. we have to offset info->codepoints[0] accordingly. */
+                    if((map[index] & 0x00ffffff)+1 == codepoints[0]) {
+                        /* Alternating type of the range. */
+                        info->codepoints[0] = codepoint + ((codepoint & 0x1) == (map[index] & 0x1) ? 1 : 0);
+                    } else {
+                        /* Range to range kind of mapping. */
+                        info->codepoints[0] += (codepoint - (map[index] & 0x00ffffff));
+                    }
+                }
+
+                return;
+            }
+        }
+
+        /* No mapping found. Map the codepoint to itself. */
+        info->codepoints[0] = codepoint;
+        info->n_codepoints = 1;
+    }
+#endif
+
+
+#if defined MD4C_USE_UTF16
+    #define IS_UTF16_SURROGATE_HI(word)     (((WORD)(word) & 0xfc00) == 0xd800)
+    #define IS_UTF16_SURROGATE_LO(word)     (((WORD)(word) & 0xfc00) == 0xdc00)
+    #define UTF16_DECODE_SURROGATE(hi, lo)  (0x10000 + ((((unsigned)(hi) & 0x3ff) << 10) | (((unsigned)(lo) & 0x3ff) << 0)))
+
+    static unsigned
+    md_decode_utf16le__(const CHAR* str, SZ str_size, SZ* p_size)
+    {
+        if(IS_UTF16_SURROGATE_HI(str[0])) {
+            if(1 < str_size && IS_UTF16_SURROGATE_LO(str[1])) {
+                if(p_size != NULL)
+                    *p_size = 2;
+                return UTF16_DECODE_SURROGATE(str[0], str[1]);
+            }
+        }
+
+        if(p_size != NULL)
+            *p_size = 1;
+        return str[0];
+    }
+
+    static unsigned
+    md_decode_utf16le_before__(MD_CTX* ctx, OFF off)
+    {
+        if(off > 2 && IS_UTF16_SURROGATE_HI(CH(off-2)) && IS_UTF16_SURROGATE_LO(CH(off-1)))
+            return UTF16_DECODE_SURROGATE(CH(off-2), CH(off-1));
+
+        return CH(off);
+    }
+
+    /* No whitespace uses surrogates, so no decoding needed here. */
+    #define ISUNICODEWHITESPACE_(codepoint) md_is_unicode_whitespace__(codepoint)
+    #define ISUNICODEWHITESPACE(off)        md_is_unicode_whitespace__(CH(off))
+    #define ISUNICODEWHITESPACEBEFORE(off)  md_is_unicode_whitespace__(CH((off)-1))
+
+    #define ISUNICODEPUNCT(off)             md_is_unicode_punct__(md_decode_utf16le__(STR(off), ctx->size - (off), NULL))
+    #define ISUNICODEPUNCTBEFORE(off)       md_is_unicode_punct__(md_decode_utf16le_before__(ctx, off))
+
+    static inline int
+    md_decode_unicode(const CHAR* str, OFF off, SZ str_size, SZ* p_char_size)
+    {
+        return md_decode_utf16le__(str+off, str_size-off, p_char_size);
+    }
+#elif defined MD4C_USE_UTF8
+    #define IS_UTF8_LEAD1(byte)     ((unsigned char)(byte) <= 0x7f)
+    #define IS_UTF8_LEAD2(byte)     (((unsigned char)(byte) & 0xe0) == 0xc0)
+    #define IS_UTF8_LEAD3(byte)     (((unsigned char)(byte) & 0xf0) == 0xe0)
+    #define IS_UTF8_LEAD4(byte)     (((unsigned char)(byte) & 0xf8) == 0xf0)
+    #define IS_UTF8_TAIL(byte)      (((unsigned char)(byte) & 0xc0) == 0x80)
+
+    static unsigned
+    md_decode_utf8__(const CHAR* str, SZ str_size, SZ* p_size)
+    {
+        if(!IS_UTF8_LEAD1(str[0])) {
+            if(IS_UTF8_LEAD2(str[0])) {
+                if(1 < str_size && IS_UTF8_TAIL(str[1])) {
+                    if(p_size != NULL)
+                        *p_size = 2;
+
+                    return (((unsigned int)str[0] & 0x1f) << 6) |
+                           (((unsigned int)str[1] & 0x3f) << 0);
+                }
+            } else if(IS_UTF8_LEAD3(str[0])) {
+                if(2 < str_size && IS_UTF8_TAIL(str[1]) && IS_UTF8_TAIL(str[2])) {
+                    if(p_size != NULL)
+                        *p_size = 3;
+
+                    return (((unsigned int)str[0] & 0x0f) << 12) |
+                           (((unsigned int)str[1] & 0x3f) << 6) |
+                           (((unsigned int)str[2] & 0x3f) << 0);
+                }
+            } else if(IS_UTF8_LEAD4(str[0])) {
+                if(3 < str_size && IS_UTF8_TAIL(str[1]) && IS_UTF8_TAIL(str[2]) && IS_UTF8_TAIL(str[3])) {
+                    if(p_size != NULL)
+                        *p_size = 4;
+
+                    return (((unsigned int)str[0] & 0x07) << 18) |
+                           (((unsigned int)str[1] & 0x3f) << 12) |
+                           (((unsigned int)str[2] & 0x3f) << 6) |
+                           (((unsigned int)str[3] & 0x3f) << 0);
+                }
+            }
+        }
+
+        if(p_size != NULL)
+            *p_size = 1;
+        return (unsigned) str[0];
+    }
+
+    static unsigned
+    md_decode_utf8_before__(MD_CTX* ctx, OFF off)
+    {
+        if(!IS_UTF8_LEAD1(CH(off-1))) {
+            if(off > 1 && IS_UTF8_LEAD2(CH(off-2)) && IS_UTF8_TAIL(CH(off-1)))
+                return (((unsigned int)CH(off-2) & 0x1f) << 6) |
+                       (((unsigned int)CH(off-1) & 0x3f) << 0);
+
+            if(off > 2 && IS_UTF8_LEAD3(CH(off-3)) && IS_UTF8_TAIL(CH(off-2)) && IS_UTF8_TAIL(CH(off-1)))
+                return (((unsigned int)CH(off-3) & 0x0f) << 12) |
+                       (((unsigned int)CH(off-2) & 0x3f) << 6) |
+                       (((unsigned int)CH(off-1) & 0x3f) << 0);
+
+            if(off > 3 && IS_UTF8_LEAD4(CH(off-4)) && IS_UTF8_TAIL(CH(off-3)) && IS_UTF8_TAIL(CH(off-2)) && IS_UTF8_TAIL(CH(off-1)))
+                return (((unsigned int)CH(off-4) & 0x07) << 18) |
+                       (((unsigned int)CH(off-3) & 0x3f) << 12) |
+                       (((unsigned int)CH(off-2) & 0x3f) << 6) |
+                       (((unsigned int)CH(off-1) & 0x3f) << 0);
+        }
+
+        return (unsigned) CH(off-1);
+    }
+
+    #define ISUNICODEWHITESPACE_(codepoint) md_is_unicode_whitespace__(codepoint)
+    #define ISUNICODEWHITESPACE(off)        md_is_unicode_whitespace__(md_decode_utf8__(STR(off), ctx->size - (off), NULL))
+    #define ISUNICODEWHITESPACEBEFORE(off)  md_is_unicode_whitespace__(md_decode_utf8_before__(ctx, off))
+
+    #define ISUNICODEPUNCT(off)             md_is_unicode_punct__(md_decode_utf8__(STR(off), ctx->size - (off), NULL))
+    #define ISUNICODEPUNCTBEFORE(off)       md_is_unicode_punct__(md_decode_utf8_before__(ctx, off))
+
+    static inline unsigned
+    md_decode_unicode(const CHAR* str, OFF off, SZ str_size, SZ* p_char_size)
+    {
+        return md_decode_utf8__(str+off, str_size-off, p_char_size);
+    }
+#else
+    #define ISUNICODEWHITESPACE_(codepoint) ISWHITESPACE_(codepoint)
+    #define ISUNICODEWHITESPACE(off)        ISWHITESPACE(off)
+    #define ISUNICODEWHITESPACEBEFORE(off)  ISWHITESPACE((off)-1)
+
+    #define ISUNICODEPUNCT(off)             ISPUNCT(off)
+    #define ISUNICODEPUNCTBEFORE(off)       ISPUNCT((off)-1)
+
+    static inline void
+    md_get_unicode_fold_info(unsigned codepoint, MD_UNICODE_FOLD_INFO* info)
+    {
+        info->codepoints[0] = codepoint;
+        if(ISUPPER_(codepoint))
+            info->codepoints[0] += 'a' - 'A';
+        info->n_codepoints = 1;
+    }
+
+    static inline unsigned
+    md_decode_unicode(const CHAR* str, OFF off, SZ str_size, SZ* p_size)
+    {
+        *p_size = 1;
+        return (unsigned) str[off];
+    }
+#endif
+
+
+/*************************************
+ ***  Helper string manipulations  ***
+ *************************************/
+
+/* Fill buffer with copy of the string between 'beg' and 'end' but replace any
+ * line breaks with given replacement character.
+ *
+ * NOTE: Caller is responsible to make sure the buffer is large enough.
+ * (Given the output is always shorter then input, (end - beg) is good idea
+ * what the caller should allocate.)
+ */
+static void
+md_merge_lines(MD_CTX* ctx, OFF beg, OFF end, const MD_LINE* lines, int n_lines,
+               CHAR line_break_replacement_char, CHAR* buffer, SZ* p_size)
+{
+    CHAR* ptr = buffer;
+    int line_index = 0;
+    OFF off = beg;
+
+    while(1) {
+        const MD_LINE* line = &lines[line_index];
+        OFF line_end = line->end;
+        if(end < line_end)
+            line_end = end;
+
+        while(off < line_end) {
+            *ptr = CH(off);
+            ptr++;
+            off++;
+        }
+
+        if(off >= end) {
+            *p_size = ptr - buffer;
+            return;
+        }
+
+        *ptr = line_break_replacement_char;
+        ptr++;
+
+        line_index++;
+        off = lines[line_index].beg;
+    }
+}
+
+/* Wrapper of md_merge_lines() which allocates new buffer for the output string.
+ */
+static int
+md_merge_lines_alloc(MD_CTX* ctx, OFF beg, OFF end, const MD_LINE* lines, int n_lines,
+                    CHAR line_break_replacement_char, CHAR** p_str, SZ* p_size)
+{
+    CHAR* buffer;
+
+    buffer = (CHAR*) malloc(sizeof(CHAR) * (end - beg));
+    if(buffer == NULL) {
+        MD_LOG("malloc() failed.");
+        return -1;
+    }
+
+    md_merge_lines(ctx, beg, end, lines, n_lines,
+                line_break_replacement_char, buffer, p_size);
+
+    *p_str = buffer;
+    return 0;
+}
+
+static OFF
+md_skip_unicode_whitespace(const CHAR* label, OFF off, SZ size)
+{
+    SZ char_size;
+    unsigned codepoint;
+
+    while(off < size) {
+        codepoint = md_decode_unicode(label, off, size, &char_size);
+        if(!ISUNICODEWHITESPACE_(codepoint)  &&  !ISNEWLINE_(label[off]))
+            break;
+        off += char_size;
+    }
+
+    return off;
+}
+
+
+/******************************
+ ***  Recognizing raw HTML  ***
+ ******************************/
+
+/* md_is_html_tag() may be called when processing inlines (inline raw HTML)
+ * or when breaking document to blocks (checking for start of HTML block type 7).
+ *
+ * When breaking document to blocks, we do not yet know line boundaries, but
+ * in that case the whole tag has to live on a single line. We distinguish this
+ * by n_lines == 0.
+ */
+static int
+md_is_html_tag(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
+{
+    int attr_state;
+    OFF off = beg;
+    OFF line_end = (n_lines > 0) ? lines[0].end : ctx->size;
+    int i = 0;
+
+    MD_ASSERT(CH(beg) == _T('<'));
+
+    if(off + 1 >= line_end)
+        return FALSE;
+    off++;
+
+    /* For parsing attributes, we need a little state automaton below.
+     * State -1: no attributes are allowed.
+     * State 0: attribute could follow after some whitespace.
+     * State 1: after a whitespace (attribute name may follow).
+     * State 2: after attribute name ('=' MAY follow).
+     * State 3: after '=' (value specification MUST follow).
+     * State 41: in middle of unquoted attribute value.
+     * State 42: in middle of single-quoted attribute value.
+     * State 43: in middle of double-quoted attribute value.
+     */
+    attr_state = 0;
+
+    if(CH(off) == _T('/')) {
+        /* Closer tag "</ ... >". No attributes may be present. */
+        attr_state = -1;
+        off++;
+    }
+
+    /* Tag name */
+    if(off >= line_end  ||  !ISALPHA(off))
+        return FALSE;
+    off++;
+    while(off < line_end  &&  (ISALNUM(off)  ||  CH(off) == _T('-')))
+        off++;
+
+    /* (Optional) attributes (if not closer), (optional) '/' (if not closer)
+     * and final '>'. */
+    while(1) {
+        while(off < line_end  &&  !ISNEWLINE(off)) {
+            if(attr_state > 40) {
+                if(attr_state == 41 && (ISBLANK(off) || ISANYOF(off, _T("\"'=<>`")))) {
+                    attr_state = 0;
+                    off--;  /* Put the char back for re-inspection in the new state. */
+                } else if(attr_state == 42 && CH(off) == _T('\'')) {
+                    attr_state = 0;
+                } else if(attr_state == 43 && CH(off) == _T('"')) {
+                    attr_state = 0;
+                }
+                off++;
+            } else if(ISWHITESPACE(off)) {
+                if(attr_state == 0)
+                    attr_state = 1;
+                off++;
+            } else if(attr_state <= 2 && CH(off) == _T('>')) {
+                /* End. */
+                goto done;
+            } else if(attr_state <= 2 && CH(off) == _T('/') && off+1 < line_end && CH(off+1) == _T('>')) {
+                /* End with digraph '/>' */
+                off++;
+                goto done;
+            } else if((attr_state == 1 || attr_state == 2) && (ISALPHA(off) || CH(off) == _T('_') || CH(off) == _T(':'))) {
+                off++;
+                /* Attribute name */
+                while(off < line_end && (ISALNUM(off) || ISANYOF(off, _T("_.:-"))))
+                    off++;
+                attr_state = 2;
+            } else if(attr_state == 2 && CH(off) == _T('=')) {
+                /* Attribute assignment sign */
+                off++;
+                attr_state = 3;
+            } else if(attr_state == 3) {
+                /* Expecting start of attribute value. */
+                if(CH(off) == _T('"'))
+                    attr_state = 43;
+                else if(CH(off) == _T('\''))
+                    attr_state = 42;
+                else if(!ISANYOF(off, _T("\"'=<>`"))  &&  !ISNEWLINE(off))
+                    attr_state = 41;
+                else
+                    return FALSE;
+                off++;
+            } else {
+                /* Anything unexpected. */
+                return FALSE;
+            }
+        }
+
+        /* We have to be on a single line. See definition of start condition
+         * of HTML block, type 7. */
+        if(n_lines == 0)
+            return FALSE;
+
+        i++;
+        if(i >= n_lines)
+            return FALSE;
+
+        off = lines[i].beg;
+        line_end = lines[i].end;
+
+        if(attr_state == 0  ||  attr_state == 41)
+            attr_state = 1;
+
+        if(off >= max_end)
+            return FALSE;
+    }
+
+done:
+    if(off >= max_end)
+        return FALSE;
+
+    *p_end = off+1;
+    return TRUE;
+}
+
+static int
+md_scan_for_html_closer(MD_CTX* ctx, const MD_CHAR* str, MD_SIZE len,
+                        const MD_LINE* lines, int n_lines,
+                        OFF beg, OFF max_end, OFF* p_end,
+                        OFF* p_scan_horizon)
+{
+    OFF off = beg;
+    int i = 0;
+
+    if(off < *p_scan_horizon  &&  *p_scan_horizon >= max_end - len) {
+        /* We have already scanned the range up to the max_end so we know
+         * there is nothing to see. */
+        return FALSE;
+    }
+
+    while(TRUE) {
+        while(off + len <= lines[i].end  &&  off + len <= max_end) {
+            if(md_ascii_eq(STR(off), str, len)) {
+                /* Success. */
+                *p_end = off + len;
+                return TRUE;
+            }
+            off++;
+        }
+
+        i++;
+        if(off >= max_end  ||  i >= n_lines) {
+            /* Failure. */
+            *p_scan_horizon = off;
+            return FALSE;
+        }
+
+        off = lines[i].beg;
+    }
+}
+
+static int
+md_is_html_comment(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg;
+
+    MD_ASSERT(CH(beg) == _T('<'));
+
+    if(off + 4 >= lines[0].end)
+        return FALSE;
+    if(CH(off+1) != _T('!')  ||  CH(off+2) != _T('-')  ||  CH(off+3) != _T('-'))
+        return FALSE;
+    off += 4;
+
+    /* ">" and "->" must not follow the opening. */
+    if(off < lines[0].end  &&  CH(off) == _T('>'))
+        return FALSE;
+    if(off+1 < lines[0].end  &&  CH(off) == _T('-')  &&  CH(off+1) == _T('>'))
+        return FALSE;
+
+    /* HTML comment must not contain "--", so we scan just for "--" instead
+     * of "-->" and verify manually that '>' follows. */
+    if(md_scan_for_html_closer(ctx, _T("--"), 2,
+                lines, n_lines, off, max_end, p_end, &ctx->html_comment_horizon))
+    {
+        if(*p_end < max_end  &&  CH(*p_end) == _T('>')) {
+            *p_end = *p_end + 1;
+            return TRUE;
+        }
+    }
+
+    return FALSE;
+}
+
+static int
+md_is_html_processing_instruction(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg;
+
+    if(off + 2 >= lines[0].end)
+        return FALSE;
+    if(CH(off+1) != _T('?'))
+        return FALSE;
+    off += 2;
+
+    return md_scan_for_html_closer(ctx, _T("?>"), 2,
+                lines, n_lines, off, max_end, p_end, &ctx->html_proc_instr_horizon);
+}
+
+static int
+md_is_html_declaration(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg;
+
+    if(off + 2 >= lines[0].end)
+        return FALSE;
+    if(CH(off+1) != _T('!'))
+        return FALSE;
+    off += 2;
+
+    /* Declaration name. */
+    if(off >= lines[0].end  ||  !ISALPHA(off))
+        return FALSE;
+    off++;
+    while(off < lines[0].end  &&  ISALPHA(off))
+        off++;
+    if(off < lines[0].end  &&  !ISWHITESPACE(off))
+        return FALSE;
+
+    return md_scan_for_html_closer(ctx, _T(">"), 1,
+                lines, n_lines, off, max_end, p_end, &ctx->html_decl_horizon);
+}
+
+static int
+md_is_html_cdata(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
+{
+    static const CHAR open_str[] = _T("<![CDATA[");
+    static const SZ open_size = SIZEOF_ARRAY(open_str) - 1;
+
+    OFF off = beg;
+
+    if(off + open_size >= lines[0].end)
+        return FALSE;
+    if(memcmp(STR(off), open_str, open_size) != 0)
+        return FALSE;
+    off += open_size;
+
+    if(lines[n_lines-1].end < max_end)
+        max_end = lines[n_lines-1].end - 2;
+
+    return md_scan_for_html_closer(ctx, _T("]]>"), 3,
+                lines, n_lines, off, max_end, p_end, &ctx->html_cdata_horizon);
+}
+
+static int
+md_is_html_any(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
+{
+    MD_ASSERT(CH(beg) == _T('<'));
+    return (md_is_html_tag(ctx, lines, n_lines, beg, max_end, p_end)  ||
+            md_is_html_comment(ctx, lines, n_lines, beg, max_end, p_end)  ||
+            md_is_html_processing_instruction(ctx, lines, n_lines, beg, max_end, p_end)  ||
+            md_is_html_declaration(ctx, lines, n_lines, beg, max_end, p_end)  ||
+            md_is_html_cdata(ctx, lines, n_lines, beg, max_end, p_end));
+}
+
+
+/****************************
+ ***  Recognizing Entity  ***
+ ****************************/
+
+static int
+md_is_hex_entity_contents(MD_CTX* ctx, const CHAR* text, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg;
+
+    while(off < max_end  &&  ISXDIGIT_(text[off])  &&  off - beg <= 8)
+        off++;
+
+    if(1 <= off - beg  &&  off - beg <= 6) {
+        *p_end = off;
+        return TRUE;
+    } else {
+        return FALSE;
+    }
+}
+
+static int
+md_is_dec_entity_contents(MD_CTX* ctx, const CHAR* text, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg;
+
+    while(off < max_end  &&  ISDIGIT_(text[off])  &&  off - beg <= 8)
+        off++;
+
+    if(1 <= off - beg  &&  off - beg <= 7) {
+        *p_end = off;
+        return TRUE;
+    } else {
+        return FALSE;
+    }
+}
+
+static int
+md_is_named_entity_contents(MD_CTX* ctx, const CHAR* text, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg;
+
+    if(off < max_end  &&  ISALPHA_(text[off]))
+        off++;
+    else
+        return FALSE;
+
+    while(off < max_end  &&  ISALNUM_(text[off])  &&  off - beg <= 48)
+        off++;
+
+    if(2 <= off - beg  &&  off - beg <= 48) {
+        *p_end = off;
+        return TRUE;
+    } else {
+        return FALSE;
+    }
+}
+
+static int
+md_is_entity_str(MD_CTX* ctx, const CHAR* text, OFF beg, OFF max_end, OFF* p_end)
+{
+    int is_contents;
+    OFF off = beg;
+
+    MD_ASSERT(text[off] == _T('&'));
+    off++;
+
+    if(off+2 < max_end  &&  text[off] == _T('#')  &&  (text[off+1] == _T('x') || text[off+1] == _T('X')))
+        is_contents = md_is_hex_entity_contents(ctx, text, off+2, max_end, &off);
+    else if(off+1 < max_end  &&  text[off] == _T('#'))
+        is_contents = md_is_dec_entity_contents(ctx, text, off+1, max_end, &off);
+    else
+        is_contents = md_is_named_entity_contents(ctx, text, off, max_end, &off);
+
+    if(is_contents  &&  off < max_end  &&  text[off] == _T(';')) {
+        *p_end = off+1;
+        return TRUE;
+    } else {
+        return FALSE;
+    }
+}
+
+static inline int
+md_is_entity(MD_CTX* ctx, OFF beg, OFF max_end, OFF* p_end)
+{
+    return md_is_entity_str(ctx, ctx->text, beg, max_end, p_end);
+}
+
+
+/******************************
+ ***  Attribute Management  ***
+ ******************************/
+
+typedef struct MD_ATTRIBUTE_BUILD_tag MD_ATTRIBUTE_BUILD;
+struct MD_ATTRIBUTE_BUILD_tag {
+    CHAR* text;
+    MD_TEXTTYPE* substr_types;
+    OFF* substr_offsets;
+    int substr_count;
+    int substr_alloc;
+    MD_TEXTTYPE trivial_types[1];
+    OFF trivial_offsets[2];
+};
+
+
+#define MD_BUILD_ATTR_NO_ESCAPES    0x0001
+
+static int
+md_build_attr_append_substr(MD_CTX* ctx, MD_ATTRIBUTE_BUILD* build,
+                            MD_TEXTTYPE type, OFF off)
+{
+    if(build->substr_count >= build->substr_alloc) {
+        MD_TEXTTYPE* new_substr_types;
+        OFF* new_substr_offsets;
+
+        build->substr_alloc = (build->substr_alloc == 0 ? 8 : build->substr_alloc * 2);
+
+        new_substr_types = (MD_TEXTTYPE*) realloc(build->substr_types,
+                                    build->substr_alloc * sizeof(MD_TEXTTYPE));
+        if(new_substr_types == NULL) {
+            MD_LOG("realloc() failed.");
+            return -1;
+        }
+        /* Note +1 to reserve space for final offset (== raw_size). */
+        new_substr_offsets = (OFF*) realloc(build->substr_offsets,
+                                    (build->substr_alloc+1) * sizeof(OFF));
+        if(new_substr_offsets == NULL) {
+            MD_LOG("realloc() failed.");
+            free(new_substr_types);
+            return -1;
+        }
+
+        build->substr_types = new_substr_types;
+        build->substr_offsets = new_substr_offsets;
+    }
+
+    build->substr_types[build->substr_count] = type;
+    build->substr_offsets[build->substr_count] = off;
+    build->substr_count++;
+    return 0;
+}
+
+static void
+md_free_attribute(MD_CTX* ctx, MD_ATTRIBUTE_BUILD* build)
+{
+    if(build->substr_alloc > 0) {
+        free(build->text);
+        free(build->substr_types);
+        free(build->substr_offsets);
+    }
+}
+
+static int
+md_build_attribute(MD_CTX* ctx, const CHAR* raw_text, SZ raw_size,
+                   unsigned flags, MD_ATTRIBUTE* attr, MD_ATTRIBUTE_BUILD* build)
+{
+    OFF raw_off, off;
+    int is_trivial;
+    int ret = 0;
+
+    memset(build, 0, sizeof(MD_ATTRIBUTE_BUILD));
+
+    /* If there is no backslash and no ampersand, build trivial attribute
+     * without any malloc(). */
+    is_trivial = TRUE;
+    for(raw_off = 0; raw_off < raw_size; raw_off++) {
+        if(ISANYOF3_(raw_text[raw_off], _T('\\'), _T('&'), _T('\0'))) {
+            is_trivial = FALSE;
+            break;
+        }
+    }
+
+    if(is_trivial) {
+        build->text = (CHAR*) (raw_size ? raw_text : NULL);
+        build->substr_types = build->trivial_types;
+        build->substr_offsets = build->trivial_offsets;
+        build->substr_count = 1;
+        build->substr_alloc = 0;
+        build->trivial_types[0] = MD_TEXT_NORMAL;
+        build->trivial_offsets[0] = 0;
+        build->trivial_offsets[1] = raw_size;
+        off = raw_size;
+    } else {
+        build->text = (CHAR*) malloc(raw_size * sizeof(CHAR));
+        if(build->text == NULL) {
+            MD_LOG("malloc() failed.");
+            goto abort;
+        }
+
+        raw_off = 0;
+        off = 0;
+
+        while(raw_off < raw_size) {
+            if(raw_text[raw_off] == _T('\0')) {
+                MD_CHECK(md_build_attr_append_substr(ctx, build, MD_TEXT_NULLCHAR, off));
+                memcpy(build->text + off, raw_text + raw_off, 1);
+                off++;
+                raw_off++;
+                continue;
+            }
+
+            if(raw_text[raw_off] == _T('&')) {
+                OFF ent_end;
+
+                if(md_is_entity_str(ctx, raw_text, raw_off, raw_size, &ent_end)) {
+                    MD_CHECK(md_build_attr_append_substr(ctx, build, MD_TEXT_ENTITY, off));
+                    memcpy(build->text + off, raw_text + raw_off, ent_end - raw_off);
+                    off += ent_end - raw_off;
+                    raw_off = ent_end;
+                    continue;
+                }
+            }
+
+            if(build->substr_count == 0  ||  build->substr_types[build->substr_count-1] != MD_TEXT_NORMAL)
+                MD_CHECK(md_build_attr_append_substr(ctx, build, MD_TEXT_NORMAL, off));
+
+            if(!(flags & MD_BUILD_ATTR_NO_ESCAPES)  &&
+               raw_text[raw_off] == _T('\\')  &&  raw_off+1 < raw_size  &&
+               (ISPUNCT_(raw_text[raw_off+1]) || ISNEWLINE_(raw_text[raw_off+1])))
+                raw_off++;
+
+            build->text[off++] = raw_text[raw_off++];
+        }
+        build->substr_offsets[build->substr_count] = off;
+    }
+
+    attr->text = build->text;
+    attr->size = off;
+    attr->substr_offsets = build->substr_offsets;
+    attr->substr_types = build->substr_types;
+    return 0;
+
+abort:
+    md_free_attribute(ctx, build);
+    return -1;
+}
+
+
+/*********************************************
+ ***  Dictionary of Reference Definitions  ***
+ *********************************************/
+
+#define MD_FNV1A_BASE       2166136261
+#define MD_FNV1A_PRIME      16777619
+
+static inline unsigned
+md_fnv1a(unsigned base, const void* data, size_t n)
+{
+    const unsigned char* buf = (const unsigned char*) data;
+    unsigned hash = base;
+    size_t i;
+
+    for(i = 0; i < n; i++) {
+        hash ^= buf[i];
+        hash *= MD_FNV1A_PRIME;
+    }
+
+    return hash;
+}
+
+
+struct MD_REF_DEF_tag {
+    CHAR* label;
+    CHAR* title;
+    unsigned hash;
+    SZ label_size                   : 24;
+    unsigned label_needs_free       :  1;
+    unsigned title_needs_free       :  1;
+    SZ title_size;
+    OFF dest_beg;
+    OFF dest_end;
+};
+
+/* Label equivalence is quite complicated with regards to whitespace and case
+ * folding. This complicates computing a hash of it as well as direct comparison
+ * of two labels. */
+
+static unsigned
+md_link_label_hash(const CHAR* label, SZ size)
+{
+    unsigned hash = MD_FNV1A_BASE;
+    OFF off;
+    unsigned codepoint;
+    int is_whitespace = FALSE;
+
+    off = md_skip_unicode_whitespace(label, 0, size);
+    while(off < size) {
+        SZ char_size;
+
+        codepoint = md_decode_unicode(label, off, size, &char_size);
+        is_whitespace = ISUNICODEWHITESPACE_(codepoint) || ISNEWLINE_(label[off]);
+
+        if(is_whitespace) {
+            codepoint = ' ';
+            hash = md_fnv1a(hash, &codepoint, sizeof(unsigned));
+            off = md_skip_unicode_whitespace(label, off, size);
+        } else {
+            MD_UNICODE_FOLD_INFO fold_info;
+
+            md_get_unicode_fold_info(codepoint, &fold_info);
+            hash = md_fnv1a(hash, fold_info.codepoints, fold_info.n_codepoints * sizeof(unsigned));
+            off += char_size;
+        }
+    }
+
+    return hash;
+}
+
+static OFF
+md_link_label_cmp_load_fold_info(const CHAR* label, OFF off, SZ size,
+                                 MD_UNICODE_FOLD_INFO* fold_info)
+{
+    unsigned codepoint;
+    SZ char_size;
+
+    if(off >= size) {
+        /* Treat end of a link label as a whitespace. */
+        goto whitespace;
+    }
+
+    if(ISNEWLINE_(label[off])) {
+        /* Treat new lines as a whitespace. */
+        off++;
+        goto whitespace;
+    }
+
+    codepoint = md_decode_unicode(label, off, size, &char_size);
+    off += char_size;
+    if(ISUNICODEWHITESPACE_(codepoint)) {
+        /* Treat all whitespace as equivalent */
+        goto whitespace;
+    }
+
+    /* Get real folding info. */
+    md_get_unicode_fold_info(codepoint, fold_info);
+    return off;
+
+whitespace:
+    fold_info->codepoints[0] = _T(' ');
+    fold_info->n_codepoints = 1;
+    return md_skip_unicode_whitespace(label, off, size);
+}
+
+static int
+md_link_label_cmp(const CHAR* a_label, SZ a_size, const CHAR* b_label, SZ b_size)
+{
+    OFF a_off;
+    OFF b_off;
+    int a_reached_end = FALSE;
+    int b_reached_end = FALSE;
+    MD_UNICODE_FOLD_INFO a_fi = { 0 };
+    MD_UNICODE_FOLD_INFO b_fi = { 0 };
+    OFF a_fi_off = 0;
+    OFF b_fi_off = 0;
+    int cmp;
+
+    a_off = md_skip_unicode_whitespace(a_label, 0, a_size);
+    b_off = md_skip_unicode_whitespace(b_label, 0, b_size);
+    while(!a_reached_end  ||  !b_reached_end) {
+        /* If needed, load fold info for next char. */
+        if(a_fi_off >= a_fi.n_codepoints) {
+            a_fi_off = 0;
+            a_off = md_link_label_cmp_load_fold_info(a_label, a_off, a_size, &a_fi);
+            a_reached_end = (a_off >= a_size);
+        }
+        if(b_fi_off >= b_fi.n_codepoints) {
+            b_fi_off = 0;
+            b_off = md_link_label_cmp_load_fold_info(b_label, b_off, b_size, &b_fi);
+            b_reached_end = (b_off >= b_size);
+        }
+
+        cmp = b_fi.codepoints[b_fi_off] - a_fi.codepoints[a_fi_off];
+        if(cmp != 0)
+            return cmp;
+
+        a_fi_off++;
+        b_fi_off++;
+    }
+
+    return 0;
+}
+
+typedef struct MD_REF_DEF_LIST_tag MD_REF_DEF_LIST;
+struct MD_REF_DEF_LIST_tag {
+    int n_ref_defs;
+    int alloc_ref_defs;
+    MD_REF_DEF* ref_defs[];  /* Valid items always  point into ctx->ref_defs[] */
+};
+
+static int
+md_ref_def_cmp(const void* a, const void* b)
+{
+    const MD_REF_DEF* a_ref = *(const MD_REF_DEF**)a;
+    const MD_REF_DEF* b_ref = *(const MD_REF_DEF**)b;
+
+    if(a_ref->hash < b_ref->hash)
+        return -1;
+    else if(a_ref->hash > b_ref->hash)
+        return +1;
+    else
+        return md_link_label_cmp(a_ref->label, a_ref->label_size, b_ref->label, b_ref->label_size);
+}
+
+static int
+md_ref_def_cmp_stable(const void* a, const void* b)
+{
+    int cmp;
+
+    cmp = md_ref_def_cmp(a, b);
+
+    /* Ensure stability of the sorting. */
+    if(cmp == 0) {
+        const MD_REF_DEF* a_ref = *(const MD_REF_DEF**)a;
+        const MD_REF_DEF* b_ref = *(const MD_REF_DEF**)b;
+
+        if(a_ref < b_ref)
+            cmp = -1;
+        else if(a_ref > b_ref)
+            cmp = +1;
+        else
+            cmp = 0;
+    }
+
+    return cmp;
+}
+
+static int
+md_build_ref_def_hashtable(MD_CTX* ctx)
+{
+    int i, j;
+
+    if(ctx->n_ref_defs == 0)
+        return 0;
+
+    ctx->ref_def_hashtable_size = (ctx->n_ref_defs * 5) / 4;
+    ctx->ref_def_hashtable = malloc(ctx->ref_def_hashtable_size * sizeof(void*));
+    if(ctx->ref_def_hashtable == NULL) {
+        MD_LOG("malloc() failed.");
+        goto abort;
+    }
+    memset(ctx->ref_def_hashtable, 0, ctx->ref_def_hashtable_size * sizeof(void*));
+
+    /* Each member of ctx->ref_def_hashtable[] can be:
+     *  -- NULL,
+     *  -- pointer to the MD_REF_DEF in ctx->ref_defs[], or
+     *  -- pointer to a MD_REF_DEF_LIST, which holds multiple pointers to
+     *     such MD_REF_DEFs.
+     */
+    for(i = 0; i < ctx->n_ref_defs; i++) {
+        MD_REF_DEF* def = &ctx->ref_defs[i];
+        void* bucket;
+        MD_REF_DEF_LIST* list;
+
+        def->hash = md_link_label_hash(def->label, def->label_size);
+        bucket = ctx->ref_def_hashtable[def->hash % ctx->ref_def_hashtable_size];
+
+        if(bucket == NULL) {
+            ctx->ref_def_hashtable[def->hash % ctx->ref_def_hashtable_size] = def;
+            continue;
+        }
+
+        if(ctx->ref_defs <= (MD_REF_DEF*) bucket  &&  (MD_REF_DEF*) bucket < ctx->ref_defs + ctx->n_ref_defs) {
+            /* The bucket already contains one ref. def. Lets see whether it
+             * is the same label (ref. def. duplicate) or different one
+             * (hash conflict). */
+            MD_REF_DEF* old_def = (MD_REF_DEF*) bucket;
+
+            if(md_link_label_cmp(def->label, def->label_size, old_def->label, old_def->label_size) == 0) {
+                /* Ignore this ref. def. */
+                continue;
+            }
+
+            /* Make the bucket capable of holding more ref. defs. */
+            list = (MD_REF_DEF_LIST*) malloc(sizeof(MD_REF_DEF_LIST) + 4 * sizeof(MD_REF_DEF*));
+            if(list == NULL) {
+                MD_LOG("malloc() failed.");
+                goto abort;
+            }
+            list->ref_defs[0] = old_def;
+            list->ref_defs[1] = def;
+            list->n_ref_defs = 2;
+            list->alloc_ref_defs = 4;
+            ctx->ref_def_hashtable[def->hash % ctx->ref_def_hashtable_size] = list;
+            continue;
+        }
+
+        /* Append the def to the bucket list. */
+        list = (MD_REF_DEF_LIST*) bucket;
+        if(list->n_ref_defs >= list->alloc_ref_defs) {
+            MD_REF_DEF_LIST* list_tmp = (MD_REF_DEF_LIST*) realloc(list,
+                        sizeof(MD_REF_DEF_LIST) + 2 * list->alloc_ref_defs * sizeof(MD_REF_DEF*));
+            if(list_tmp == NULL) {
+                MD_LOG("realloc() failed.");
+                goto abort;
+            }
+            list = list_tmp;
+            list->alloc_ref_defs *= 2;
+            ctx->ref_def_hashtable[def->hash % ctx->ref_def_hashtable_size] = list;
+        }
+
+        list->ref_defs[list->n_ref_defs] = def;
+        list->n_ref_defs++;
+    }
+
+    /* Sort the complex buckets so we can use bsearch() with them. */
+    for(i = 0; i < ctx->ref_def_hashtable_size; i++) {
+        void* bucket = ctx->ref_def_hashtable[i];
+        MD_REF_DEF_LIST* list;
+
+        if(bucket == NULL)
+            continue;
+        if(ctx->ref_defs <= (MD_REF_DEF*) bucket  &&  (MD_REF_DEF*) bucket < ctx->ref_defs + ctx->n_ref_defs)
+            continue;
+
+        list = (MD_REF_DEF_LIST*) bucket;
+        qsort(list->ref_defs, list->n_ref_defs, sizeof(MD_REF_DEF*), md_ref_def_cmp_stable);
+
+        /* Disable duplicates. */
+        for(j = 1; j < list->n_ref_defs; j++) {
+            if(md_ref_def_cmp(&list->ref_defs[j-1], &list->ref_defs[j]) == 0)
+                list->ref_defs[j] = list->ref_defs[j-1];
+        }
+    }
+
+    return 0;
+
+abort:
+    return -1;
+}
+
+static void
+md_free_ref_def_hashtable(MD_CTX* ctx)
+{
+    if(ctx->ref_def_hashtable != NULL) {
+        int i;
+
+        for(i = 0; i < ctx->ref_def_hashtable_size; i++) {
+            void* bucket = ctx->ref_def_hashtable[i];
+            if(bucket == NULL)
+                continue;
+            if(ctx->ref_defs <= (MD_REF_DEF*) bucket  &&  (MD_REF_DEF*) bucket < ctx->ref_defs + ctx->n_ref_defs)
+                continue;
+            free(bucket);
+        }
+
+        free(ctx->ref_def_hashtable);
+    }
+}
+
+static const MD_REF_DEF*
+md_lookup_ref_def(MD_CTX* ctx, const CHAR* label, SZ label_size)
+{
+    unsigned hash;
+    void* bucket;
+
+    if(ctx->ref_def_hashtable_size == 0)
+        return NULL;
+
+    hash = md_link_label_hash(label, label_size);
+    bucket = ctx->ref_def_hashtable[hash % ctx->ref_def_hashtable_size];
+
+    if(bucket == NULL) {
+        return NULL;
+    } else if(ctx->ref_defs <= (MD_REF_DEF*) bucket  &&  (MD_REF_DEF*) bucket < ctx->ref_defs + ctx->n_ref_defs) {
+        const MD_REF_DEF* def = (MD_REF_DEF*) bucket;
+
+        if(md_link_label_cmp(def->label, def->label_size, label, label_size) == 0)
+            return def;
+        else
+            return NULL;
+    } else {
+        MD_REF_DEF_LIST* list = (MD_REF_DEF_LIST*) bucket;
+        MD_REF_DEF key_buf;
+        const MD_REF_DEF* key = &key_buf;
+        const MD_REF_DEF** ret;
+
+        key_buf.label = (CHAR*) label;
+        key_buf.label_size = label_size;
+        key_buf.hash = md_link_label_hash(key_buf.label, key_buf.label_size);
+
+        ret = (const MD_REF_DEF**) bsearch(&key, list->ref_defs,
+                    list->n_ref_defs, sizeof(MD_REF_DEF*), md_ref_def_cmp);
+        if(ret != NULL)
+            return *ret;
+        else
+            return NULL;
+    }
+}
+
+
+/***************************
+ ***  Recognizing Links  ***
+ ***************************/
+
+/* Note this code is partially shared between processing inlines and blocks
+ * as reference definitions and links share some helper parser functions.
+ */
+
+typedef struct MD_LINK_ATTR_tag MD_LINK_ATTR;
+struct MD_LINK_ATTR_tag {
+    OFF dest_beg;
+    OFF dest_end;
+
+    CHAR* title;
+    SZ title_size;
+    int title_needs_free;
+};
+
+
+static int
+md_is_link_label(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg,
+                 OFF* p_end, int* p_beg_line_index, int* p_end_line_index,
+                 OFF* p_contents_beg, OFF* p_contents_end)
+{
+    OFF off = beg;
+    OFF contents_beg = 0;
+    OFF contents_end = 0;
+    int line_index = 0;
+    int len = 0;
+
+    if(CH(off) != _T('['))
+        return FALSE;
+    off++;
+
+    while(1) {
+        OFF line_end = lines[line_index].end;
+
+        while(off < line_end) {
+            if(CH(off) == _T('\\')  &&  off+1 < ctx->size  &&  (ISPUNCT(off+1) || ISNEWLINE(off+1))) {
+                if(contents_end == 0) {
+                    contents_beg = off;
+                    *p_beg_line_index = line_index;
+                }
+                contents_end = off + 2;
+                off += 2;
+            } else if(CH(off) == _T('[')) {
+                return FALSE;
+            } else if(CH(off) == _T(']')) {
+                if(contents_beg < contents_end) {
+                    /* Success. */
+                    *p_contents_beg = contents_beg;
+                    *p_contents_end = contents_end;
+                    *p_end = off+1;
+                    *p_end_line_index = line_index;
+                    return TRUE;
+                } else {
+                    /* Link label must have some non-whitespace contents. */
+                    return FALSE;
+                }
+            } else {
+                unsigned codepoint;
+                SZ char_size;
+
+                codepoint = md_decode_unicode(ctx->text, off, ctx->size, &char_size);
+                if(!ISUNICODEWHITESPACE_(codepoint)) {
+                    if(contents_end == 0) {
+                        contents_beg = off;
+                        *p_beg_line_index = line_index;
+                    }
+                    contents_end = off + char_size;
+                }
+
+                off += char_size;
+            }
+
+            len++;
+            if(len > 999)
+                return FALSE;
+        }
+
+        line_index++;
+        len++;
+        if(line_index < n_lines)
+            off = lines[line_index].beg;
+        else
+            break;
+    }
+
+    return FALSE;
+}
+
+static int
+md_is_link_destination_A(MD_CTX* ctx, OFF beg, OFF max_end, OFF* p_end,
+                         OFF* p_contents_beg, OFF* p_contents_end)
+{
+    OFF off = beg;
+
+    if(off >= max_end  ||  CH(off) != _T('<'))
+        return FALSE;
+    off++;
+
+    while(off < max_end) {
+        if(CH(off) == _T('\\')  &&  off+1 < max_end  &&  ISPUNCT(off+1)) {
+            off += 2;
+            continue;
+        }
+
+        if(ISNEWLINE(off)  ||  CH(off) == _T('<'))
+            return FALSE;
+
+        if(CH(off) == _T('>')) {
+            /* Success. */
+            *p_contents_beg = beg+1;
+            *p_contents_end = off;
+            *p_end = off+1;
+            return TRUE;
+        }
+
+        off++;
+    }
+
+    return FALSE;
+}
+
+static int
+md_is_link_destination_B(MD_CTX* ctx, OFF beg, OFF max_end, OFF* p_end,
+                         OFF* p_contents_beg, OFF* p_contents_end)
+{
+    OFF off = beg;
+    int parenthesis_level = 0;
+
+    while(off < max_end) {
+        if(CH(off) == _T('\\')  &&  off+1 < max_end  &&  ISPUNCT(off+1)) {
+            off += 2;
+            continue;
+        }
+
+        if(ISWHITESPACE(off) || ISCNTRL(off))
+            break;
+
+        /* Link destination may include balanced pairs of unescaped '(' ')'.
+         * Note we limit the maximal nesting level by 32 to protect us from
+         * https://github.com/jgm/cmark/issues/214 */
+        if(CH(off) == _T('(')) {
+            parenthesis_level++;
+            if(parenthesis_level > 32)
+                return FALSE;
+        } else if(CH(off) == _T(')')) {
+            if(parenthesis_level == 0)
+                break;
+            parenthesis_level--;
+        }
+
+        off++;
+    }
+
+    if(parenthesis_level != 0  ||  off == beg)
+        return FALSE;
+
+    /* Success. */
+    *p_contents_beg = beg;
+    *p_contents_end = off;
+    *p_end = off;
+    return TRUE;
+}
+
+static inline int
+md_is_link_destination(MD_CTX* ctx, OFF beg, OFF max_end, OFF* p_end,
+                       OFF* p_contents_beg, OFF* p_contents_end)
+{
+    if(CH(beg) == _T('<'))
+        return md_is_link_destination_A(ctx, beg, max_end, p_end, p_contents_beg, p_contents_end);
+    else
+        return md_is_link_destination_B(ctx, beg, max_end, p_end, p_contents_beg, p_contents_end);
+}
+
+static int
+md_is_link_title(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg,
+                 OFF* p_end, int* p_beg_line_index, int* p_end_line_index,
+                 OFF* p_contents_beg, OFF* p_contents_end)
+{
+    OFF off = beg;
+    CHAR closer_char;
+    int line_index = 0;
+
+    /* White space with up to one line break. */
+    while(off < lines[line_index].end  &&  ISWHITESPACE(off))
+        off++;
+    if(off >= lines[line_index].end) {
+        line_index++;
+        if(line_index >= n_lines)
+            return FALSE;
+        off = lines[line_index].beg;
+    }
+    if(off == beg)
+        return FALSE;
+
+    *p_beg_line_index = line_index;
+
+    /* First char determines how to detect end of it. */
+    switch(CH(off)) {
+        case _T('"'):   closer_char = _T('"'); break;
+        case _T('\''):  closer_char = _T('\''); break;
+        case _T('('):   closer_char = _T(')'); break;
+        default:        return FALSE;
+    }
+    off++;
+
+    *p_contents_beg = off;
+
+    while(line_index < n_lines) {
+        OFF line_end = lines[line_index].end;
+
+        while(off < line_end) {
+            if(CH(off) == _T('\\')  &&  off+1 < ctx->size  &&  (ISPUNCT(off+1) || ISNEWLINE(off+1))) {
+                off++;
+            } else if(CH(off) == closer_char) {
+                /* Success. */
+                *p_contents_end = off;
+                *p_end = off+1;
+                *p_end_line_index = line_index;
+                return TRUE;
+            } else if(closer_char == _T(')')  &&  CH(off) == _T('(')) {
+                /* ()-style title cannot contain (unescaped '(')) */
+                return FALSE;
+            }
+
+            off++;
+        }
+
+        line_index++;
+    }
+
+    return FALSE;
+}
+
+/* Returns 0 if it is not a reference definition.
+ *
+ * Returns N > 0 if it is a reference definition. N then corresponds to the
+ * number of lines forming it). In this case the definition is stored for
+ * resolving any links referring to it.
+ *
+ * Returns -1 in case of an error (out of memory).
+ */
+static int
+md_is_link_reference_definition(MD_CTX* ctx, const MD_LINE* lines, int n_lines)
+{
+    OFF label_contents_beg;
+    OFF label_contents_end;
+    int label_contents_line_index = -1;
+    int label_is_multiline;
+    CHAR* label;
+    SZ label_size;
+    int label_needs_free = FALSE;
+    OFF dest_contents_beg;
+    OFF dest_contents_end;
+    OFF title_contents_beg;
+    OFF title_contents_end;
+    int title_contents_line_index;
+    int title_is_multiline;
+    OFF off;
+    int line_index = 0;
+    int tmp_line_index;
+    MD_REF_DEF* def;
+    int ret;
+
+    /* Link label. */
+    if(!md_is_link_label(ctx, lines, n_lines, lines[0].beg,
+                &off, &label_contents_line_index, &line_index,
+                &label_contents_beg, &label_contents_end))
+        return FALSE;
+    label_is_multiline = (label_contents_line_index != line_index);
+
+    /* Colon. */
+    if(off >= lines[line_index].end  ||  CH(off) != _T(':'))
+        return FALSE;
+    off++;
+
+    /* Optional white space with up to one line break. */
+    while(off < lines[line_index].end  &&  ISWHITESPACE(off))
+        off++;
+    if(off >= lines[line_index].end) {
+        line_index++;
+        if(line_index >= n_lines)
+            return FALSE;
+        off = lines[line_index].beg;
+    }
+
+    /* Link destination. */
+    if(!md_is_link_destination(ctx, off, lines[line_index].end,
+                &off, &dest_contents_beg, &dest_contents_end))
+        return FALSE;
+
+    /* (Optional) title. Note we interpret it as an title only if nothing
+     * more follows on its last line. */
+    if(md_is_link_title(ctx, lines + line_index, n_lines - line_index, off,
+                &off, &title_contents_line_index, &tmp_line_index,
+                &title_contents_beg, &title_contents_end)
+        &&  off >= lines[line_index + tmp_line_index].end)
+    {
+        title_is_multiline = (tmp_line_index != title_contents_line_index);
+        title_contents_line_index += line_index;
+        line_index += tmp_line_index;
+    } else {
+        /* Not a title. */
+        title_is_multiline = FALSE;
+        title_contents_beg = off;
+        title_contents_end = off;
+        title_contents_line_index = 0;
+    }
+
+    /* Nothing more can follow on the last line. */
+    if(off < lines[line_index].end)
+        return FALSE;
+
+    /* Construct label. */
+    if(!label_is_multiline) {
+        label = (CHAR*) STR(label_contents_beg);
+        label_size = label_contents_end - label_contents_beg;
+        label_needs_free = FALSE;
+    } else {
+        MD_CHECK(md_merge_lines_alloc(ctx, label_contents_beg, label_contents_end,
+                    lines + label_contents_line_index, n_lines - label_contents_line_index,
+                    _T(' '), &label, &label_size));
+        label_needs_free = TRUE;
+    }
+
+    /* Store the reference definition. */
+    if(ctx->n_ref_defs >= ctx->alloc_ref_defs) {
+        MD_REF_DEF* new_defs;
+
+        ctx->alloc_ref_defs = (ctx->alloc_ref_defs > 0 ? ctx->alloc_ref_defs * 2 : 16);
+        new_defs = (MD_REF_DEF*) realloc(ctx->ref_defs, ctx->alloc_ref_defs * sizeof(MD_REF_DEF));
+        if(new_defs == NULL) {
+            MD_LOG("realloc() failed.");
+            ret = -1;
+            goto abort;
+        }
+
+        ctx->ref_defs = new_defs;
+    }
+
+    def = &ctx->ref_defs[ctx->n_ref_defs];
+    memset(def, 0, sizeof(MD_REF_DEF));
+
+    def->label = label;
+    def->label_size = label_size;
+    def->label_needs_free = label_needs_free;
+
+    def->dest_beg = dest_contents_beg;
+    def->dest_end = dest_contents_end;
+
+    if(title_contents_beg >= title_contents_end) {
+        def->title = NULL;
+        def->title_size = 0;
+    } else if(!title_is_multiline) {
+        def->title = (CHAR*) STR(title_contents_beg);
+        def->title_size = title_contents_end - title_contents_beg;
+    } else {
+        MD_CHECK(md_merge_lines_alloc(ctx, title_contents_beg, title_contents_end,
+                    lines + title_contents_line_index, n_lines - title_contents_line_index,
+                    _T('\n'), &def->title, &def->title_size));
+        def->title_needs_free = TRUE;
+    }
+
+    /* Success. */
+    ctx->n_ref_defs++;
+    return line_index + 1;
+
+abort:
+    /* Failure. */
+    if(label_needs_free)
+        free(label);
+    return -1;
+}
+
+static int
+md_is_link_reference(MD_CTX* ctx, const MD_LINE* lines, int n_lines,
+                     OFF beg, OFF end, MD_LINK_ATTR* attr)
+{
+    const MD_REF_DEF* def;
+    const MD_LINE* beg_line;
+    const MD_LINE* end_line;
+    CHAR* label;
+    SZ label_size;
+    int ret;
+
+    MD_ASSERT(CH(beg) == _T('[') || CH(beg) == _T('!'));
+    MD_ASSERT(CH(end-1) == _T(']'));
+
+    beg += (CH(beg) == _T('!') ? 2 : 1);
+    end--;
+
+    /* Find lines corresponding to the beg and end positions. */
+    MD_ASSERT(lines[0].beg <= beg);
+    beg_line = lines;
+    while(beg >= beg_line->end)
+        beg_line++;
+
+    MD_ASSERT(end <= lines[n_lines-1].end);
+    end_line = beg_line;
+    while(end >= end_line->end)
+        end_line++;
+
+    if(beg_line != end_line) {
+        MD_CHECK(md_merge_lines_alloc(ctx, beg, end, beg_line,
+                 n_lines - (beg_line - lines), _T(' '), &label, &label_size));
+    } else {
+        label = (CHAR*) STR(beg);
+        label_size = end - beg;
+    }
+
+    def = md_lookup_ref_def(ctx, label, label_size);
+    if(def != NULL) {
+        attr->dest_beg = def->dest_beg;
+        attr->dest_end = def->dest_end;
+        attr->title = def->title;
+        attr->title_size = def->title_size;
+        attr->title_needs_free = FALSE;
+    }
+
+    if(beg_line != end_line)
+        free(label);
+
+    ret = (def != NULL);
+
+abort:
+    return ret;
+}
+
+static int
+md_is_inline_link_spec(MD_CTX* ctx, const MD_LINE* lines, int n_lines,
+                       OFF beg, OFF* p_end, MD_LINK_ATTR* attr)
+{
+    int line_index = 0;
+    int tmp_line_index;
+    OFF title_contents_beg;
+    OFF title_contents_end;
+    int title_contents_line_index;
+    int title_is_multiline;
+    OFF off = beg;
+    int ret = FALSE;
+
+    while(off >= lines[line_index].end)
+        line_index++;
+
+    MD_ASSERT(CH(off) == _T('('));
+    off++;
+
+    /* Optional white space with up to one line break. */
+    while(off < lines[line_index].end  &&  ISWHITESPACE(off))
+        off++;
+    if(off >= lines[line_index].end  &&  ISNEWLINE(off)) {
+        line_index++;
+        if(line_index >= n_lines)
+            return FALSE;
+        off = lines[line_index].beg;
+    }
+
+    /* Link destination may be omitted, but only when not also having a title. */
+    if(off < ctx->size  &&  CH(off) == _T(')')) {
+        attr->dest_beg = off;
+        attr->dest_end = off;
+        attr->title = NULL;
+        attr->title_size = 0;
+        attr->title_needs_free = FALSE;
+        off++;
+        *p_end = off;
+        return TRUE;
+    }
+
+    /* Link destination. */
+    if(!md_is_link_destination(ctx, off, lines[line_index].end,
+                        &off, &attr->dest_beg, &attr->dest_end))
+        return FALSE;
+
+    /* (Optional) title. */
+    if(md_is_link_title(ctx, lines + line_index, n_lines - line_index, off,
+                &off, &title_contents_line_index, &tmp_line_index,
+                &title_contents_beg, &title_contents_end))
+    {
+        title_is_multiline = (tmp_line_index != title_contents_line_index);
+        title_contents_line_index += line_index;
+        line_index += tmp_line_index;
+    } else {
+        /* Not a title. */
+        title_is_multiline = FALSE;
+        title_contents_beg = off;
+        title_contents_end = off;
+        title_contents_line_index = 0;
+    }
+
+    /* Optional whitespace followed with final ')'. */
+    while(off < lines[line_index].end  &&  ISWHITESPACE(off))
+        off++;
+    if(off >= lines[line_index].end  &&  ISNEWLINE(off)) {
+        line_index++;
+        if(line_index >= n_lines)
+            return FALSE;
+        off = lines[line_index].beg;
+    }
+    if(CH(off) != _T(')'))
+        goto abort;
+    off++;
+
+    if(title_contents_beg >= title_contents_end) {
+        attr->title = NULL;
+        attr->title_size = 0;
+        attr->title_needs_free = FALSE;
+    } else if(!title_is_multiline) {
+        attr->title = (CHAR*) STR(title_contents_beg);
+        attr->title_size = title_contents_end - title_contents_beg;
+        attr->title_needs_free = FALSE;
+    } else {
+        MD_CHECK(md_merge_lines_alloc(ctx, title_contents_beg, title_contents_end,
+                    lines + title_contents_line_index, n_lines - title_contents_line_index,
+                    _T('\n'), &attr->title, &attr->title_size));
+        attr->title_needs_free = TRUE;
+    }
+
+    *p_end = off;
+    ret = TRUE;
+
+abort:
+    return ret;
+}
+
+static void
+md_free_ref_defs(MD_CTX* ctx)
+{
+    int i;
+
+    for(i = 0; i < ctx->n_ref_defs; i++) {
+        MD_REF_DEF* def = &ctx->ref_defs[i];
+
+        if(def->label_needs_free)
+            free(def->label);
+        if(def->title_needs_free)
+            free(def->title);
+    }
+
+    free(ctx->ref_defs);
+}
+
+
+/******************************************
+ ***  Processing Inlines (a.k.a Spans)  ***
+ ******************************************/
+
+/* We process inlines in few phases:
+ *
+ * (1) We go through the block text and collect all significant characters
+ *     which may start/end a span or some other significant position into
+ *     ctx->marks[]. Core of this is what md_collect_marks() does.
+ *
+ *     We also do some very brief preliminary context-less analysis, whether
+ *     it might be opener or closer (e.g. of an emphasis span).
+ *
+ *     This speeds the other steps as we do not need to re-iterate over all
+ *     characters anymore.
+ *
+ * (2) We analyze each potential mark types, in order by their precedence.
+ *
+ *     In each md_analyze_XXX() function, we re-iterate list of the marks,
+ *     skipping already resolved regions (in preceding precedences) and try to
+ *     resolve them.
+ *
+ * (2.1) For trivial marks, which are single (e.g. HTML entity), we just mark
+ *       them as resolved.
+ *
+ * (2.2) For range-type marks, we analyze whether the mark could be closer
+ *       and, if yes, whether there is some preceding opener it could satisfy.
+ *
+ *       If not we check whether it could be really an opener and if yes, we
+ *       remember it so subsequent closers may resolve it.
+ *
+ * (3) Finally, when all marks were analyzed, we render the block contents
+ *     by calling MD_RENDERER::text() callback, interrupting by ::enter_span()
+ *     or ::close_span() whenever we reach a resolved mark.
+ */
+
+
+/* The mark structure.
+ *
+ * '\\': Maybe escape sequence.
+ * '\0': NULL char.
+ *  '*': Maybe (strong) emphasis start/end.
+ *  '_': Maybe (strong) emphasis start/end.
+ *  '~': Maybe strikethrough start/end (needs MD_FLAG_STRIKETHROUGH).
+ *  '`': Maybe code span start/end.
+ *  '&': Maybe start of entity.
+ *  ';': Maybe end of entity.
+ *  '<': Maybe start of raw HTML or autolink.
+ *  '>': Maybe end of raw HTML or autolink.
+ *  '[': Maybe start of link label or link text.
+ *  '!': Equivalent of '[' for image.
+ *  ']': Maybe end of link label or link text.
+ *  '@': Maybe permissive e-mail auto-link (needs MD_FLAG_PERMISSIVEEMAILAUTOLINKS).
+ *  ':': Maybe permissive URL auto-link (needs MD_FLAG_PERMISSIVEURLAUTOLINKS).
+ *  '.': Maybe permissive WWW auto-link (needs MD_FLAG_PERMISSIVEWWWAUTOLINKS).
+ *  'D': Dummy mark, it reserves a space for splitting a previous mark
+ *       (e.g. emphasis) or to make more space for storing some special data
+ *       related to the preceding mark (e.g. link).
+ *
+ * Note that not all instances of these chars in the text imply creation of the
+ * structure. Only those which have (or may have, after we see more context)
+ * the special meaning.
+ *
+ * (Keep this struct as small as possible to fit as much of them into CPU
+ * cache line.)
+ */
+struct MD_MARK_tag {
+    OFF beg;
+    OFF end;
+
+    /* For unresolved openers, 'prev' and 'next' form the chain of open openers
+     * of given type 'ch'.
+     *
+     * During resolving, we disconnect from the chain and point to the
+     * corresponding counterpart so opener points to its closer and vice versa.
+     */
+    int prev;
+    int next;
+    CHAR ch;
+    unsigned char flags;
+};
+
+/* Mark flags (these apply to ALL mark types). */
+#define MD_MARK_POTENTIAL_OPENER            0x01  /* Maybe opener. */
+#define MD_MARK_POTENTIAL_CLOSER            0x02  /* Maybe closer. */
+#define MD_MARK_OPENER                      0x04  /* Definitely opener. */
+#define MD_MARK_CLOSER                      0x08  /* Definitely closer. */
+#define MD_MARK_RESOLVED                    0x10  /* Resolved in any definite way. */
+
+/* Mark flags specific for various mark types (so they can share bits). */
+#define MD_MARK_EMPH_INTRAWORD              0x20  /* Helper for the "rule of 3". */
+#define MD_MARK_EMPH_MOD3_0                 0x40
+#define MD_MARK_EMPH_MOD3_1                 0x80
+#define MD_MARK_EMPH_MOD3_2                 (0x40 | 0x80)
+#define MD_MARK_EMPH_MOD3_MASK              (0x40 | 0x80)
+#define MD_MARK_AUTOLINK                    0x20  /* Distinguisher for '<', '>'. */
+#define MD_MARK_VALIDPERMISSIVEAUTOLINK     0x20  /* For permissive autolinks. */
+
+static MD_MARKCHAIN*
+md_asterisk_chain(MD_CTX* ctx, unsigned flags)
+{
+    switch(flags & (MD_MARK_EMPH_INTRAWORD | MD_MARK_EMPH_MOD3_MASK)) {
+        case MD_MARK_EMPH_INTRAWORD | MD_MARK_EMPH_MOD3_0:  return &ASTERISK_OPENERS_intraword_mod3_0;
+        case MD_MARK_EMPH_INTRAWORD | MD_MARK_EMPH_MOD3_1:  return &ASTERISK_OPENERS_intraword_mod3_1;
+        case MD_MARK_EMPH_INTRAWORD | MD_MARK_EMPH_MOD3_2:  return &ASTERISK_OPENERS_intraword_mod3_2;
+        case MD_MARK_EMPH_MOD3_0:                           return &ASTERISK_OPENERS_extraword_mod3_0;
+        case MD_MARK_EMPH_MOD3_1:                           return &ASTERISK_OPENERS_extraword_mod3_1;
+        case MD_MARK_EMPH_MOD3_2:                           return &ASTERISK_OPENERS_extraword_mod3_2;
+        default:                                            MD_UNREACHABLE();
+    }
+    return NULL;
+}
+
+static MD_MARKCHAIN*
+md_mark_chain(MD_CTX* ctx, int mark_index)
+{
+    MD_MARK* mark = &ctx->marks[mark_index];
+
+    switch(mark->ch) {
+        case _T('*'):   return md_asterisk_chain(ctx, mark->flags);
+        case _T('_'):   return &UNDERSCORE_OPENERS;
+        case _T('~'):   return &TILDE_OPENERS;
+        case _T('['):   return &BRACKET_OPENERS;
+        case _T('|'):   return &TABLECELLBOUNDARIES;
+        default:        return NULL;
+    }
+}
+
+static MD_MARK*
+md_push_mark(MD_CTX* ctx)
+{
+    if(ctx->n_marks >= ctx->alloc_marks) {
+        MD_MARK* new_marks;
+
+        ctx->alloc_marks = (ctx->alloc_marks > 0 ? ctx->alloc_marks * 2 : 64);
+        new_marks = realloc(ctx->marks, ctx->alloc_marks * sizeof(MD_MARK));
+        if(new_marks == NULL) {
+            MD_LOG("realloc() failed.");
+            return NULL;
+        }
+
+        ctx->marks = new_marks;
+    }
+
+    return &ctx->marks[ctx->n_marks++];
+}
+
+#define PUSH_MARK_()                                                    \
+        do {                                                            \
+            mark = md_push_mark(ctx);                                   \
+            if(mark == NULL) {                                          \
+                ret = -1;                                               \
+                goto abort;                                             \
+            }                                                           \
+        } while(0)
+
+#define PUSH_MARK(ch_, beg_, end_, flags_)                              \
+        do {                                                            \
+            PUSH_MARK_();                                               \
+            mark->beg = (beg_);                                         \
+            mark->end = (end_);                                         \
+            mark->prev = -1;                                            \
+            mark->next = -1;                                            \
+            mark->ch = (char)(ch_);                                     \
+            mark->flags = (flags_);                                     \
+        } while(0)
+
+
+static void
+md_mark_chain_append(MD_CTX* ctx, MD_MARKCHAIN* chain, int mark_index)
+{
+    if(chain->tail >= 0)
+        ctx->marks[chain->tail].next = mark_index;
+    else
+        chain->head = mark_index;
+
+    ctx->marks[mark_index].prev = chain->tail;
+    chain->tail = mark_index;
+}
+
+/* Sometimes, we need to store a pointer into the mark. It is quite rare
+ * so we do not bother to make MD_MARK use union, and it can only happen
+ * for dummy marks. */
+static inline void
+md_mark_store_ptr(MD_CTX* ctx, int mark_index, void* ptr)
+{
+    MD_MARK* mark = &ctx->marks[mark_index];
+    MD_ASSERT(mark->ch == 'D');
+
+    /* Check only members beg and end are misused for this. */
+    MD_ASSERT(sizeof(void*) <= 2 * sizeof(OFF));
+    memcpy(mark, &ptr, sizeof(void*));
+}
+
+static inline void*
+md_mark_get_ptr(MD_CTX* ctx, int mark_index)
+{
+    void* ptr;
+    MD_MARK* mark = &ctx->marks[mark_index];
+    MD_ASSERT(mark->ch == 'D');
+    memcpy(&ptr, mark, sizeof(void*));
+    return ptr;
+}
+
+static void
+md_resolve_range(MD_CTX* ctx, MD_MARKCHAIN* chain, int opener_index, int closer_index)
+{
+    MD_MARK* opener = &ctx->marks[opener_index];
+    MD_MARK* closer = &ctx->marks[closer_index];
+
+    /* Remove opener from the list of openers. */
+    if(chain != NULL) {
+        if(opener->prev >= 0)
+            ctx->marks[opener->prev].next = opener->next;
+        else
+            chain->head = opener->next;
+
+        if(opener->next >= 0)
+            ctx->marks[opener->next].prev = opener->prev;
+        else
+            chain->tail = opener->prev;
+    }
+
+    /* Interconnect opener and closer and mark both as resolved. */
+    opener->next = closer_index;
+    opener->flags |= MD_MARK_OPENER | MD_MARK_RESOLVED;
+    closer->prev = opener_index;
+    closer->flags |= MD_MARK_CLOSER | MD_MARK_RESOLVED;
+}
+
+
+#define MD_ROLLBACK_ALL         0
+#define MD_ROLLBACK_CROSSING    1
+
+/* In the range ctx->marks[opener_index] ... [closer_index], undo some or all
+ * resolvings accordingly to these rules:
+ *
+ * (1) All openers BEFORE the range corresponding to any closer inside the
+ *     range are un-resolved and they are re-added to their respective chains
+ *     of unresolved openers. This ensures we can reuse the opener for closers
+ *     AFTER the range.
+ *
+ * (2) If 'how' is MD_ROLLBACK_ALL, then ALL resolved marks inside the range
+ *     are discarded.
+ *
+ * (3) If 'how' is MD_ROLLBACK_CROSSING, only closers with openers handled
+ *     in (1) are discarded. I.e. pairs of openers and closers which are both
+ *     inside the range are retained as well as any unpaired marks.
+ */
+static void
+md_rollback(MD_CTX* ctx, int opener_index, int closer_index, int how)
+{
+    int i;
+    int mark_index;
+
+    /* Cut all unresolved openers at the mark index. */
+    for(i = OPENERS_CHAIN_FIRST; i < OPENERS_CHAIN_LAST+1; i++) {
+        MD_MARKCHAIN* chain = &ctx->mark_chains[i];
+
+        while(chain->tail >= opener_index)
+            chain->tail = ctx->marks[chain->tail].prev;
+
+        if(chain->tail >= 0)
+            ctx->marks[chain->tail].next = -1;
+        else
+            chain->head = -1;
+    }
+
+    /* Go backwards so that un-resolved openers are re-added into their
+     * respective chains, in the right order. */
+    mark_index = closer_index - 1;
+    while(mark_index > opener_index) {
+        MD_MARK* mark = &ctx->marks[mark_index];
+        int mark_flags = mark->flags;
+        int discard_flag = (how == MD_ROLLBACK_ALL);
+
+        if(mark->flags & MD_MARK_CLOSER) {
+            int mark_opener_index = mark->prev;
+
+            /* Undo opener BEFORE the range. */
+            if(mark_opener_index < opener_index) {
+                MD_MARK* mark_opener = &ctx->marks[mark_opener_index];
+                MD_MARKCHAIN* chain;
+
+                mark_opener->flags &= ~(MD_MARK_OPENER | MD_MARK_CLOSER | MD_MARK_RESOLVED);
+                chain = md_mark_chain(ctx, opener_index);
+                if(chain != NULL) {
+                    md_mark_chain_append(ctx, chain, mark_opener_index);
+                    discard_flag = 1;
+                }
+            }
+        }
+
+        /* And reset our flags. */
+        if(discard_flag)
+            mark->flags &= ~(MD_MARK_OPENER | MD_MARK_CLOSER | MD_MARK_RESOLVED);
+
+        /* Jump as far as we can over unresolved or non-interesting marks. */
+        switch(how) {
+            case MD_ROLLBACK_CROSSING:
+                if((mark_flags & MD_MARK_CLOSER)  &&  mark->prev > opener_index) {
+                    /* If we are closer with opener INSIDE the range, there may
+                     * not be any other crosser inside the subrange. */
+                    mark_index = mark->prev;
+                    break;
+                }
+                /* Pass through. */
+            default:
+                mark_index--;
+                break;
+        }
+    }
+}
+
+static void
+md_build_mark_char_map(MD_CTX* ctx)
+{
+    memset(ctx->mark_char_map, 0, sizeof(ctx->mark_char_map));
+
+    ctx->mark_char_map['\\'] = 1;
+    ctx->mark_char_map['*'] = 1;
+    ctx->mark_char_map['_'] = 1;
+    ctx->mark_char_map['`'] = 1;
+    ctx->mark_char_map['&'] = 1;
+    ctx->mark_char_map[';'] = 1;
+    ctx->mark_char_map['<'] = 1;
+    ctx->mark_char_map['>'] = 1;
+    ctx->mark_char_map['['] = 1;
+    ctx->mark_char_map['!'] = 1;
+    ctx->mark_char_map[']'] = 1;
+    ctx->mark_char_map['\0'] = 1;
+
+    if(ctx->parser.flags & MD_FLAG_STRIKETHROUGH)
+        ctx->mark_char_map['~'] = 1;
+
+    if(ctx->parser.flags & MD_FLAG_LATEXMATHSPANS)
+        ctx->mark_char_map['$'] = 1;
+
+    if(ctx->parser.flags & MD_FLAG_PERMISSIVEEMAILAUTOLINKS)
+        ctx->mark_char_map['@'] = 1;
+
+    if(ctx->parser.flags & MD_FLAG_PERMISSIVEURLAUTOLINKS)
+        ctx->mark_char_map[':'] = 1;
+
+    if(ctx->parser.flags & MD_FLAG_PERMISSIVEWWWAUTOLINKS)
+        ctx->mark_char_map['.'] = 1;
+
+    if((ctx->parser.flags & MD_FLAG_TABLES) || (ctx->parser.flags & MD_FLAG_WIKILINKS))
+        ctx->mark_char_map['|'] = 1;
+
+    if(ctx->parser.flags & MD_FLAG_COLLAPSEWHITESPACE) {
+        int i;
+
+        for(i = 0; i < (int) sizeof(ctx->mark_char_map); i++) {
+            if(ISWHITESPACE_(i))
+                ctx->mark_char_map[i] = 1;
+        }
+    }
+}
+
+/* We limit code span marks to lower then 32 backticks. This solves the
+ * pathologic case of too many openers, each of different length: Their
+ * resolving would be then O(n^2). */
+#define CODESPAN_MARK_MAXLEN    32
+
+static int
+md_is_code_span(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg,
+                OFF* p_opener_beg, OFF* p_opener_end,
+                OFF* p_closer_beg, OFF* p_closer_end,
+                OFF last_potential_closers[CODESPAN_MARK_MAXLEN],
+                int* p_reached_paragraph_end)
+{
+    OFF opener_beg = beg;
+    OFF opener_end;
+    OFF closer_beg;
+    OFF closer_end;
+    SZ mark_len;
+    OFF line_end;
+    int has_space_after_opener = FALSE;
+    int has_eol_after_opener = FALSE;
+    int has_space_before_closer = FALSE;
+    int has_eol_before_closer = FALSE;
+    int has_only_space = TRUE;
+    int line_index = 0;
+
+    line_end = lines[0].end;
+    opener_end = opener_beg;
+    while(opener_end < line_end  &&  CH(opener_end) == _T('`'))
+        opener_end++;
+    has_space_after_opener = (opener_end < line_end && CH(opener_end) == _T(' '));
+    has_eol_after_opener = (opener_end == line_end);
+
+    /* The caller needs to know end of the opening mark even if we fail. */
+    *p_opener_end = opener_end;
+
+    mark_len = opener_end - opener_beg;
+    if(mark_len > CODESPAN_MARK_MAXLEN)
+        return FALSE;
+
+    /* Check whether we already know there is no closer of this length.
+     * If so, re-scan does no sense. This fixes issue #59. */
+    if(last_potential_closers[mark_len-1] >= lines[n_lines-1].end  ||
+       (*p_reached_paragraph_end  &&  last_potential_closers[mark_len-1] < opener_end))
+        return FALSE;
+
+    closer_beg = opener_end;
+    closer_end = opener_end;
+
+    /* Find closer mark. */
+    while(TRUE) {
+        while(closer_beg < line_end  &&  CH(closer_beg) != _T('`')) {
+            if(CH(closer_beg) != _T(' '))
+                has_only_space = FALSE;
+            closer_beg++;
+        }
+        closer_end = closer_beg;
+        while(closer_end < line_end  &&  CH(closer_end) == _T('`'))
+            closer_end++;
+
+        if(closer_end - closer_beg == mark_len) {
+            /* Success. */
+            has_space_before_closer = (closer_beg > lines[line_index].beg && CH(closer_beg-1) == _T(' '));
+            has_eol_before_closer = (closer_beg == lines[line_index].beg);
+            break;
+        }
+
+        if(closer_end - closer_beg > 0) {
+            /* We have found a back-tick which is not part of the closer. */
+            has_only_space = FALSE;
+
+            /* But if we eventually fail, remember it as a potential closer
+             * of its own length for future attempts. This mitigates needs for
+             * rescans. */
+            if(closer_end - closer_beg < CODESPAN_MARK_MAXLEN) {
+                if(closer_beg > last_potential_closers[closer_end - closer_beg - 1])
+                    last_potential_closers[closer_end - closer_beg - 1] = closer_beg;
+            }
+        }
+
+        if(closer_end >= line_end) {
+            line_index++;
+            if(line_index >= n_lines) {
+                /* Reached end of the paragraph and still nothing. */
+                *p_reached_paragraph_end = TRUE;
+                return FALSE;
+            }
+            /* Try on the next line. */
+            line_end = lines[line_index].end;
+            closer_beg = lines[line_index].beg;
+        } else {
+            closer_beg = closer_end;
+        }
+    }
+
+    /* If there is a space or a new line both after and before the opener
+     * (and if the code span is not made of spaces only), consume one initial
+     * and one trailing space as part of the marks. */
+    if(!has_only_space  &&
+       (has_space_after_opener || has_eol_after_opener)  &&
+       (has_space_before_closer || has_eol_before_closer))
+    {
+        if(has_space_after_opener)
+            opener_end++;
+        else
+            opener_end = lines[1].beg;
+
+        if(has_space_before_closer)
+            closer_beg--;
+        else {
+            closer_beg = lines[line_index-1].end;
+            /* We need to eat the preceding "\r\n" but not any line trailing
+             * spaces. */
+            while(closer_beg < ctx->size  &&  ISBLANK(closer_beg))
+                closer_beg++;
+        }
+    }
+
+    *p_opener_beg = opener_beg;
+    *p_opener_end = opener_end;
+    *p_closer_beg = closer_beg;
+    *p_closer_end = closer_end;
+    return TRUE;
+}
+
+static int
+md_is_autolink_uri(MD_CTX* ctx, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg+1;
+
+    MD_ASSERT(CH(beg) == _T('<'));
+
+    /* Check for scheme. */
+    if(off >= max_end  ||  !ISASCII(off))
+        return FALSE;
+    off++;
+    while(1) {
+        if(off >= max_end)
+            return FALSE;
+        if(off - beg > 32)
+            return FALSE;
+        if(CH(off) == _T(':')  &&  off - beg >= 3)
+            break;
+        if(!ISALNUM(off) && CH(off) != _T('+') && CH(off) != _T('-') && CH(off) != _T('.'))
+            return FALSE;
+        off++;
+    }
+
+    /* Check the path after the scheme. */
+    while(off < max_end  &&  CH(off) != _T('>')) {
+        if(ISWHITESPACE(off) || ISCNTRL(off) || CH(off) == _T('<'))
+            return FALSE;
+        off++;
+    }
+
+    if(off >= max_end)
+        return FALSE;
+
+    MD_ASSERT(CH(off) == _T('>'));
+    *p_end = off+1;
+    return TRUE;
+}
+
+static int
+md_is_autolink_email(MD_CTX* ctx, OFF beg, OFF max_end, OFF* p_end)
+{
+    OFF off = beg + 1;
+    int label_len;
+
+    MD_ASSERT(CH(beg) == _T('<'));
+
+    /* The code should correspond to this regexp:
+            /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+
+            @[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?
+            (?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/
+     */
+
+    /* Username (before '@'). */
+    while(off < max_end  &&  (ISALNUM(off) || ISANYOF(off, _T(".!#$%&'*+/=?^_`{|}~-"))))
+        off++;
+    if(off <= beg+1)
+        return FALSE;
+
+    /* '@' */
+    if(off >= max_end  ||  CH(off) != _T('@'))
+        return FALSE;
+    off++;
+
+    /* Labels delimited with '.'; each label is sequence of 1 - 62 alnum
+     * characters or '-', but '-' is not allowed as first or last char. */
+    label_len = 0;
+    while(off < max_end) {
+        if(ISALNUM(off))
+            label_len++;
+        else if(CH(off) == _T('-')  &&  label_len > 0)
+            label_len++;
+        else if(CH(off) == _T('.')  &&  label_len > 0  &&  CH(off-1) != _T('-'))
+            label_len = 0;
+        else
+            break;
+
+        if(label_len > 62)
+            return FALSE;
+
+        off++;
+    }
+
+    if(label_len <= 0  || off >= max_end  ||  CH(off) != _T('>') ||  CH(off-1) == _T('-'))
+        return FALSE;
+
+    *p_end = off+1;
+    return TRUE;
+}
+
+static int
+md_is_autolink(MD_CTX* ctx, OFF beg, OFF max_end, OFF* p_end, int* p_missing_mailto)
+{
+    if(md_is_autolink_uri(ctx, beg, max_end, p_end)) {
+        *p_missing_mailto = FALSE;
+        return TRUE;
+    }
+
+    if(md_is_autolink_email(ctx, beg, max_end, p_end)) {
+        *p_missing_mailto = TRUE;
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+static int
+md_collect_marks(MD_CTX* ctx, const MD_LINE* lines, int n_lines, int table_mode)
+{
+    int i;
+    int ret = 0;
+    MD_MARK* mark;
+    OFF codespan_last_potential_closers[CODESPAN_MARK_MAXLEN] = { 0 };
+    int codespan_scanned_till_paragraph_end = FALSE;
+
+    for(i = 0; i < n_lines; i++) {
+        const MD_LINE* line = &lines[i];
+        OFF off = line->beg;
+        OFF line_end = line->end;
+
+        while(TRUE) {
+            CHAR ch;
+
+#ifdef MD4C_USE_UTF16
+    /* For UTF-16, mark_char_map[] covers only ASCII. */
+    #define IS_MARK_CHAR(off)   ((CH(off) < SIZEOF_ARRAY(ctx->mark_char_map))  &&  \
+                                (ctx->mark_char_map[(unsigned char) CH(off)]))
+#else
+    /* For 8-bit encodings, mark_char_map[] covers all 256 elements. */
+    #define IS_MARK_CHAR(off)   (ctx->mark_char_map[(unsigned char) CH(off)])
+#endif
+
+            /* Optimization: Use some loop unrolling. */
+            while(off + 3 < line_end  &&  !IS_MARK_CHAR(off+0)  &&  !IS_MARK_CHAR(off+1)
+                                      &&  !IS_MARK_CHAR(off+2)  &&  !IS_MARK_CHAR(off+3))
+                off += 4;
+            while(off < line_end  &&  !IS_MARK_CHAR(off+0))
+                off++;
+
+            if(off >= line_end)
+                break;
+
+            ch = CH(off);
+
+            /* A backslash escape.
+             * It can go beyond line->end as it may involve escaped new
+             * line to form a hard break. */
+            if(ch == _T('\\')  &&  off+1 < ctx->size  &&  (ISPUNCT(off+1) || ISNEWLINE(off+1))) {
+                /* Hard-break cannot be on the last line of the block. */
+                if(!ISNEWLINE(off+1)  ||  i+1 < n_lines)
+                    PUSH_MARK(ch, off, off+2, MD_MARK_RESOLVED);
+                off += 2;
+                continue;
+            }
+
+            /* A potential (string) emphasis start/end. */
+            if(ch == _T('*')  ||  ch == _T('_')) {
+                OFF tmp = off+1;
+                int left_level;     /* What precedes: 0 = whitespace; 1 = punctuation; 2 = other char. */
+                int right_level;    /* What follows: 0 = whitespace; 1 = punctuation; 2 = other char. */
+
+                while(tmp < line_end  &&  CH(tmp) == ch)
+                    tmp++;
+
+                if(off == line->beg  ||  ISUNICODEWHITESPACEBEFORE(off))
+                    left_level = 0;
+                else if(ISUNICODEPUNCTBEFORE(off))
+                    left_level = 1;
+                else
+                    left_level = 2;
+
+                if(tmp == line_end  ||  ISUNICODEWHITESPACE(tmp))
+                    right_level = 0;
+                else if(ISUNICODEPUNCT(tmp))
+                    right_level = 1;
+                else
+                    right_level = 2;
+
+                /* Intra-word underscore doesn't have special meaning. */
+                if(ch == _T('_')  &&  left_level == 2  &&  right_level == 2) {
+                    left_level = 0;
+                    right_level = 0;
+                }
+
+                if(left_level != 0  ||  right_level != 0) {
+                    unsigned flags = 0;
+
+                    if(left_level > 0  &&  left_level >= right_level)
+                        flags |= MD_MARK_POTENTIAL_CLOSER;
+                    if(right_level > 0  &&  right_level >= left_level)
+                        flags |= MD_MARK_POTENTIAL_OPENER;
+                    if(left_level == 2  &&  right_level == 2)
+                        flags |= MD_MARK_EMPH_INTRAWORD;
+
+                    /* For "the rule of three" we need to remember the original
+                     * size of the mark (modulo three), before we potentially
+                     * split the mark when being later resolved partially by some
+                     * shorter closer. */
+                    switch((tmp - off) % 3) {
+                        case 0: flags |= MD_MARK_EMPH_MOD3_0; break;
+                        case 1: flags |= MD_MARK_EMPH_MOD3_1; break;
+                        case 2: flags |= MD_MARK_EMPH_MOD3_2; break;
+                    }
+
+                    PUSH_MARK(ch, off, tmp, flags);
+
+                    /* During resolving, multiple asterisks may have to be
+                     * split into independent span start/ends. Consider e.g.
+                     * "**foo* bar*". Therefore we push also some empty dummy
+                     * marks to have enough space for that. */
+                    off++;
+                    while(off < tmp) {
+                        PUSH_MARK('D', off, off, 0);
+                        off++;
+                    }
+                    continue;
+                }
+
+                off = tmp;
+                continue;
+            }
+
+            /* A potential code span start/end. */
+            if(ch == _T('`')) {
+                OFF opener_beg, opener_end;
+                OFF closer_beg, closer_end;
+                int is_code_span;
+
+                is_code_span = md_is_code_span(ctx, lines + i, n_lines - i, off,
+                                    &opener_beg, &opener_end, &closer_beg, &closer_end,
+                                    codespan_last_potential_closers,
+                                    &codespan_scanned_till_paragraph_end);
+                if(is_code_span) {
+                    PUSH_MARK(_T('`'), opener_beg, opener_end, MD_MARK_OPENER | MD_MARK_RESOLVED);
+                    PUSH_MARK(_T('`'), closer_beg, closer_end, MD_MARK_CLOSER | MD_MARK_RESOLVED);
+                    ctx->marks[ctx->n_marks-2].next = ctx->n_marks-1;
+                    ctx->marks[ctx->n_marks-1].prev = ctx->n_marks-2;
+
+                    off = closer_end;
+
+                    /* Advance the current line accordingly. */
+                    while(off > line_end) {
+                        i++;
+                        line++;
+                        line_end = line->end;
+                    }
+                    continue;
+                }
+
+                off = opener_end;
+                continue;
+            }
+
+            /* A potential entity start. */
+            if(ch == _T('&')) {
+                PUSH_MARK(ch, off, off+1, MD_MARK_POTENTIAL_OPENER);
+                off++;
+                continue;
+            }
+
+            /* A potential entity end. */
+            if(ch == _T(';')) {
+                /* We surely cannot be entity unless the previous mark is '&'. */
+                if(ctx->n_marks > 0  &&  ctx->marks[ctx->n_marks-1].ch == _T('&'))
+                    PUSH_MARK(ch, off, off+1, MD_MARK_POTENTIAL_CLOSER);
+
+                off++;
+                continue;
+            }
+
+            /* A potential autolink or raw HTML start/end. */
+            if(ch == _T('<')) {
+                int is_autolink;
+                OFF autolink_end;
+                int missing_mailto;
+
+                if(!(ctx->parser.flags & MD_FLAG_NOHTMLSPANS)) {
+                    int is_html;
+                    OFF html_end;
+
+                    /* Given the nature of the raw HTML, we have to recognize
+                     * it here. Doing so later in md_analyze_lt_gt() could
+                     * open can of worms of quadratic complexity. */
+                    is_html = md_is_html_any(ctx, lines + i, n_lines - i, off,
+                                    lines[n_lines-1].end, &html_end);
+                    if(is_html) {
+                        PUSH_MARK(_T('<'), off, off, MD_MARK_OPENER | MD_MARK_RESOLVED);
+                        PUSH_MARK(_T('>'), html_end, html_end, MD_MARK_CLOSER | MD_MARK_RESOLVED);
+                        ctx->marks[ctx->n_marks-2].next = ctx->n_marks-1;
+                        ctx->marks[ctx->n_marks-1].prev = ctx->n_marks-2;
+                        off = html_end;
+
+                        /* Advance the current line accordingly. */
+                        while(off > line_end) {
+                            i++;
+                            line++;
+                            line_end = line->end;
+                        }
+                        continue;
+                    }
+                }
+
+                is_autolink = md_is_autolink(ctx, off, lines[n_lines-1].end,
+                                    &autolink_end, &missing_mailto);
+                if(is_autolink) {
+                    PUSH_MARK((missing_mailto ? _T('@') : _T('<')), off, off+1,
+                                MD_MARK_OPENER | MD_MARK_RESOLVED | MD_MARK_AUTOLINK);
+                    PUSH_MARK(_T('>'), autolink_end-1, autolink_end,
+                                MD_MARK_CLOSER | MD_MARK_RESOLVED | MD_MARK_AUTOLINK);
+                    ctx->marks[ctx->n_marks-2].next = ctx->n_marks-1;
+                    ctx->marks[ctx->n_marks-1].prev = ctx->n_marks-2;
+                    off = autolink_end;
+                    continue;
+                }
+
+                off++;
+                continue;
+            }
+
+            /* A potential link or its part. */
+            if(ch == _T('[')  ||  (ch == _T('!') && off+1 < line_end && CH(off+1) == _T('['))) {
+                OFF tmp = (ch == _T('[') ? off+1 : off+2);
+                PUSH_MARK(ch, off, tmp, MD_MARK_POTENTIAL_OPENER);
+                off = tmp;
+                /* Two dummies to make enough place for data we need if it is
+                 * a link. */
+                PUSH_MARK('D', off, off, 0);
+                PUSH_MARK('D', off, off, 0);
+                continue;
+            }
+            if(ch == _T(']')) {
+                PUSH_MARK(ch, off, off+1, MD_MARK_POTENTIAL_CLOSER);
+                off++;
+                continue;
+            }
+
+            /* A potential permissive e-mail autolink. */
+            if(ch == _T('@')) {
+                if(line->beg + 1 <= off  &&  ISALNUM(off-1)  &&
+                    off + 3 < line->end  &&  ISALNUM(off+1))
+                {
+                    PUSH_MARK(ch, off, off+1, MD_MARK_POTENTIAL_OPENER);
+                    /* Push a dummy as a reserve for a closer. */
+                    PUSH_MARK('D', off, off, 0);
+                }
+
+                off++;
+                continue;
+            }
+
+            /* A potential permissive URL autolink. */
+            if(ch == _T(':')) {
+                static struct {
+                    const CHAR* scheme;
+                    SZ scheme_size;
+                    const CHAR* suffix;
+                    SZ suffix_size;
+                } scheme_map[] = {
+                    /* In the order from the most frequently used, arguably. */
+                    { _T("http"), 4,    _T("//"), 2 },
+                    { _T("https"), 5,   _T("//"), 2 },
+                    { _T("ftp"), 3,     _T("//"), 2 }
+                };
+                int scheme_index;
+
+                for(scheme_index = 0; scheme_index < (int) SIZEOF_ARRAY(scheme_map); scheme_index++) {
+                    const CHAR* scheme = scheme_map[scheme_index].scheme;
+                    const SZ scheme_size = scheme_map[scheme_index].scheme_size;
+                    const CHAR* suffix = scheme_map[scheme_index].suffix;
+                    const SZ suffix_size = scheme_map[scheme_index].suffix_size;
+
+                    if(line->beg + scheme_size <= off  &&  md_ascii_eq(STR(off-scheme_size), scheme, scheme_size)  &&
+                        (line->beg + scheme_size == off || ISWHITESPACE(off-scheme_size-1) || ISANYOF(off-scheme_size-1, _T("*_~([")))  &&
+                        off + 1 + suffix_size < line->end  &&  md_ascii_eq(STR(off+1), suffix, suffix_size))
+                    {
+                        PUSH_MARK(ch, off-scheme_size, off+1+suffix_size, MD_MARK_POTENTIAL_OPENER);
+                        /* Push a dummy as a reserve for a closer. */
+                        PUSH_MARK('D', off, off, 0);
+                        off += 1 + suffix_size;
+                        continue;
+                    }
+                }
+
+                off++;
+                continue;
+            }
+
+            /* A potential permissive WWW autolink. */
+            if(ch == _T('.')) {
+                if(line->beg + 3 <= off  &&  md_ascii_eq(STR(off-3), _T("www"), 3)  &&
+                    (line->beg + 3 == off || ISWHITESPACE(off-4) || ISANYOF(off-4, _T("*_~([")))  &&
+                    off + 1 < line_end)
+                {
+                    PUSH_MARK(ch, off-3, off+1, MD_MARK_POTENTIAL_OPENER);
+                    /* Push a dummy as a reserve for a closer. */
+                    PUSH_MARK('D', off, off, 0);
+                    off++;
+                    continue;
+                }
+
+                off++;
+                continue;
+            }
+
+            /* A potential table cell boundary or wiki link label delimiter. */
+            if((table_mode || ctx->parser.flags & MD_FLAG_WIKILINKS) && ch == _T('|')) {
+                PUSH_MARK(ch, off, off+1, 0);
+                off++;
+                continue;
+            }
+
+            /* A potential strikethrough start/end. */
+            if(ch == _T('~')) {
+                OFF tmp = off+1;
+
+                while(tmp < line_end  &&  CH(tmp) == _T('~'))
+                    tmp++;
+
+                PUSH_MARK(ch, off, tmp, MD_MARK_POTENTIAL_OPENER | MD_MARK_POTENTIAL_CLOSER);
+                off = tmp;
+                continue;
+            }
+
+            /* A potential equation start/end */
+            if(ch == _T('$')) {
+                /* We can have at most two consecutive $ signs,
+                 * where two dollar signs signify a display equation. */
+                OFF tmp = off+1;
+
+                while(tmp < line_end && CH(tmp) == _T('$'))
+                    tmp++;
+
+                if (tmp - off <= 2)
+                    PUSH_MARK(ch, off, tmp, MD_MARK_POTENTIAL_OPENER | MD_MARK_POTENTIAL_CLOSER);
+                off = tmp;
+                continue;
+            }
+
+            /* Turn non-trivial whitespace into single space. */
+            if(ISWHITESPACE_(ch)) {
+                OFF tmp = off+1;
+
+                while(tmp < line_end  &&  ISWHITESPACE(tmp))
+                    tmp++;
+
+                if(tmp - off > 1  ||  ch != _T(' '))
+                    PUSH_MARK(ch, off, tmp, MD_MARK_RESOLVED);
+
+                off = tmp;
+                continue;
+            }
+
+            /* NULL character. */
+            if(ch == _T('\0')) {
+                PUSH_MARK(ch, off, off+1, MD_MARK_RESOLVED);
+                off++;
+                continue;
+            }
+
+            off++;
+        }
+    }
+
+    /* Add a dummy mark at the end of the mark vector to simplify
+     * process_inlines(). */
+    PUSH_MARK(127, ctx->size, ctx->size, MD_MARK_RESOLVED);
+
+abort:
+    return ret;
+}
+
+static void
+md_analyze_bracket(MD_CTX* ctx, int mark_index)
+{
+    /* We cannot really resolve links here as for that we would need
+     * more context. E.g. a following pair of brackets (reference link),
+     * or enclosing pair of brackets (if the inner is the link, the outer
+     * one cannot be.)
+     *
+     * Therefore we here only construct a list of resolved '[' ']' pairs
+     * ordered by position of the closer. This allows ur to analyze what is
+     * or is not link in the right order, from inside to outside in case
+     * of nested brackets.
+     *
+     * The resolving itself is deferred into md_resolve_links().
+     */
+
+    MD_MARK* mark = &ctx->marks[mark_index];
+
+    if(mark->flags & MD_MARK_POTENTIAL_OPENER) {
+        md_mark_chain_append(ctx, &BRACKET_OPENERS, mark_index);
+        return;
+    }
+
+    if(BRACKET_OPENERS.tail >= 0) {
+        /* Pop the opener from the chain. */
+        int opener_index = BRACKET_OPENERS.tail;
+        MD_MARK* opener = &ctx->marks[opener_index];
+        if(opener->prev >= 0)
+            ctx->marks[opener->prev].next = -1;
+        else
+            BRACKET_OPENERS.head = -1;
+        BRACKET_OPENERS.tail = opener->prev;
+
+        /* Interconnect the opener and closer. */
+        opener->next = mark_index;
+        mark->prev = opener_index;
+
+        /* Add the pair into chain of potential links for md_resolve_links().
+         * Note we misuse opener->prev for this as opener->next points to its
+         * closer. */
+        if(ctx->unresolved_link_tail >= 0)
+            ctx->marks[ctx->unresolved_link_tail].prev = opener_index;
+        else
+            ctx->unresolved_link_head = opener_index;
+        ctx->unresolved_link_tail = opener_index;
+        opener->prev = -1;
+    }
+}
+
+/* Forward declaration. */
+static void md_analyze_link_contents(MD_CTX* ctx, const MD_LINE* lines, int n_lines,
+                                     int mark_beg, int mark_end);
+
+static int
+md_resolve_links(MD_CTX* ctx, const MD_LINE* lines, int n_lines)
+{
+    int opener_index = ctx->unresolved_link_head;
+    OFF last_link_beg = 0;
+    OFF last_link_end = 0;
+    OFF last_img_beg = 0;
+    OFF last_img_end = 0;
+
+    while(opener_index >= 0) {
+        MD_MARK* opener = &ctx->marks[opener_index];
+        int closer_index = opener->next;
+        MD_MARK* closer = &ctx->marks[closer_index];
+        int next_index = opener->prev;
+        MD_MARK* next_opener;
+        MD_MARK* next_closer;
+        MD_LINK_ATTR attr;
+        int is_link = FALSE;
+
+        if(next_index >= 0) {
+            next_opener = &ctx->marks[next_index];
+            next_closer = &ctx->marks[next_opener->next];
+        } else {
+            next_opener = NULL;
+            next_closer = NULL;
+        }
+
+        /* If nested ("[ [ ] ]"), we need to make sure that:
+         *   - The outer does not end inside of (...) belonging to the inner.
+         *   - The outer cannot be link if the inner is link (i.e. not image).
+         *
+         * (Note we here analyze from inner to outer as the marks are ordered
+         * by closer->beg.)
+         */
+        if((opener->beg < last_link_beg  &&  closer->end < last_link_end)  ||
+           (opener->beg < last_img_beg  &&  closer->end < last_img_end)  ||
+           (opener->beg < last_link_end  &&  opener->ch == '['))
+        {
+            opener_index = next_index;
+            continue;
+        }
+
+        /* Detect and resolve wiki links. */
+        if ((ctx->parser.flags & MD_FLAG_WIKILINKS) &&
+            next_opener != NULL && next_closer != NULL &&
+            (opener->end - opener->beg == 1) &&
+            (next_opener->beg == opener->beg - 1) &&
+            (next_closer->beg == closer->beg + 1) &&
+            (next_opener->end - next_opener->beg == 1) &&
+            (next_closer->end - next_closer->beg == 1) &&
+            (next_opener->ch == '[' && next_closer->ch == ']'))
+        {
+            is_link = TRUE;
+
+            if (opener->end == closer->beg)
+                is_link = FALSE;
+
+            int delim_index = opener_index;
+            MD_MARK* delim = &ctx->marks[delim_index];
+
+            /* To prevent runaway O(n^2) performance, don't look too far for the delimiter (.. < 100). */
+            while(is_link && delim_index < closer_index && (delim_index - opener_index) < 100 ) {
+                if(delim->ch == '|' && delim->beg == opener->end) {
+                    is_link = FALSE;
+                } else if(delim->ch == '|' && delim->end == closer->beg) {
+                    break;
+                } else if(delim->ch == '|') {
+                    opener->end = delim->beg;
+                    break;
+                }
+                delim_index++;
+                delim = &ctx->marks[delim_index];
+            }
+
+            OFF off = closer->beg-1;
+            int count = 0;
+            int has_label = (opener->end - opener->beg > 2);
+            const MD_LINE* line;
+            int line_index = n_lines-1;
+
+            /* An image inside the link target disables the wiki link. */
+            if( (has_label && last_img_beg >= opener->beg && last_img_end <= opener->end) ||
+                (!has_label && last_img_beg >= opener->beg && last_img_end <= closer->end))
+                is_link = FALSE;
+
+            while(is_link && off > opener->beg && count++ < 100) {
+
+                /* Newline not allowed in link target. */
+                if(has_label && (off <= opener->end) && ISNEWLINE(off))
+                    is_link = FALSE;
+                else if(!has_label && off > opener->end && ISNEWLINE(off))
+                    is_link = FALSE;
+                else if(ISNEWLINE(off)) {
+                    line = &lines[line_index--];
+                    count = count - line->total_indent - 1;  /* Count newline too. */
+                }
+
+                off--;
+            }
+
+            if(off > opener->beg)
+                is_link = FALSE;
+
+            if(is_link) {
+                if(delim->ch == '|')
+                    delim->flags |= MD_MARK_RESOLVED;
+
+                opener->beg = next_opener->beg;
+                closer->end = next_closer->end;
+
+                opener->next = closer_index;
+                opener->flags |= MD_MARK_OPENER | MD_MARK_RESOLVED;
+                closer->prev = opener_index;
+                closer->flags |= MD_MARK_CLOSER | MD_MARK_RESOLVED;
+
+                last_link_beg = opener->beg;
+                last_link_end = closer->end;
+
+                if ((opener->end - opener->beg > 2))
+                    md_analyze_link_contents(ctx, lines, n_lines, opener_index+1, closer_index);
+
+                opener_index = next_index;
+                continue;
+            }
+
+        }
+
+
+        if(next_opener != NULL  &&  next_opener->beg == closer->end) {
+            if(next_closer->beg > closer->end + 1) {
+                /* Might be full reference link. */
+                is_link = md_is_link_reference(ctx, lines, n_lines, next_opener->beg, next_closer->end, &attr);
+            } else {
+                /* Might be shortcut reference link. */
+                is_link = md_is_link_reference(ctx, lines, n_lines, opener->beg, closer->end, &attr);
+            }
+
+            if(is_link < 0)
+                return -1;
+
+            if(is_link) {
+                /* Eat the 2nd "[...]". */
+                closer->end = next_closer->end;
+            }
+        } else {
+            if(closer->end < ctx->size  &&  CH(closer->end) == _T('(')) {
+                /* Might be inline link. */
+                OFF inline_link_end = UINT_MAX;
+
+                is_link = md_is_inline_link_spec(ctx, lines, n_lines, closer->end, &inline_link_end, &attr);
+                if(is_link < 0)
+                    return -1;
+
+                /* Check the closing ')' is not inside an already resolved range
+                 * (i.e. a range with a higher priority), e.g. a code span. */
+                if(is_link) {
+                    int i = closer_index + 1;
+
+                    while(i < ctx->n_marks) {
+                        MD_MARK* mark = &ctx->marks[i];
+
+                        if(mark->beg >= inline_link_end)
+                            break;
+                        if((mark->flags & (MD_MARK_OPENER | MD_MARK_RESOLVED)) == (MD_MARK_OPENER | MD_MARK_RESOLVED)) {
+                            if(ctx->marks[mark->next].beg >= inline_link_end) {
+                                /* Cancel the link status. */
+                                if(attr.title_needs_free)
+                                    free(attr.title);
+                                is_link = FALSE;
+                                break;
+                            }
+
+                            i = mark->next + 1;
+                        } else {
+                            i++;
+                        }
+                    }
+                }
+
+                if(is_link) {
+                    /* Eat the "(...)" */
+                    closer->end = inline_link_end;
+                }
+            }
+
+            if(!is_link) {
+                /* Might be collapsed reference link. */
+                is_link = md_is_link_reference(ctx, lines, n_lines, opener->beg, closer->end, &attr);
+                if(is_link < 0)
+                    return -1;
+            }
+        }
+
+        if(is_link) {
+            /* Resolve the brackets as a link. */
+            opener->flags |= MD_MARK_OPENER | MD_MARK_RESOLVED;
+            closer->flags |= MD_MARK_CLOSER | MD_MARK_RESOLVED;
+
+            /* If it is a link, we store the destination and title in the two
+             * dummy marks after the opener. */
+            MD_ASSERT(ctx->marks[opener_index+1].ch == 'D');
+            ctx->marks[opener_index+1].beg = attr.dest_beg;
+            ctx->marks[opener_index+1].end = attr.dest_end;
+
+            MD_ASSERT(ctx->marks[opener_index+2].ch == 'D');
+            md_mark_store_ptr(ctx, opener_index+2, attr.title);
+            if(attr.title_needs_free)
+                md_mark_chain_append(ctx, &PTR_CHAIN, opener_index+2);
+            ctx->marks[opener_index+2].prev = attr.title_size;
+
+            if(opener->ch == '[') {
+                last_link_beg = opener->beg;
+                last_link_end = closer->end;
+            } else {
+                last_img_beg = opener->beg;
+                last_img_end = closer->end;
+            }
+
+            md_analyze_link_contents(ctx, lines, n_lines, opener_index+1, closer_index);
+        }
+
+        opener_index = next_index;
+    }
+
+    return 0;
+}
+
+/* Analyze whether the mark '&' starts a HTML entity.
+ * If so, update its flags as well as flags of corresponding closer ';'. */
+static void
+md_analyze_entity(MD_CTX* ctx, int mark_index)
+{
+    MD_MARK* opener = &ctx->marks[mark_index];
+    MD_MARK* closer;
+    OFF off;
+
+    /* Cannot be entity if there is no closer as the next mark.
+     * (Any other mark between would mean strange character which cannot be
+     * part of the entity.
+     *
+     * So we can do all the work on '&' and do not call this later for the
+     * closing mark ';'.
+     */
+    if(mark_index + 1 >= ctx->n_marks)
+        return;
+    closer = &ctx->marks[mark_index+1];
+    if(closer->ch != ';')
+        return;
+
+    if(md_is_entity(ctx, opener->beg, closer->end, &off)) {
+        MD_ASSERT(off == closer->end);
+
+        md_resolve_range(ctx, NULL, mark_index, mark_index+1);
+        opener->end = closer->end;
+    }
+}
+
+static void
+md_analyze_table_cell_boundary(MD_CTX* ctx, int mark_index)
+{
+    MD_MARK* mark = &ctx->marks[mark_index];
+    mark->flags |= MD_MARK_RESOLVED;
+
+    md_mark_chain_append(ctx, &TABLECELLBOUNDARIES, mark_index);
+    ctx->n_table_cell_boundaries++;
+}
+
+/* Split a longer mark into two. The new mark takes the given count of
+ * characters. May only be called if an adequate number of dummy 'D' marks
+ * follows.
+ */
+static int
+md_split_emph_mark(MD_CTX* ctx, int mark_index, SZ n)
+{
+    MD_MARK* mark = &ctx->marks[mark_index];
+    int new_mark_index = mark_index + (mark->end - mark->beg - n);
+    MD_MARK* dummy = &ctx->marks[new_mark_index];
+
+    MD_ASSERT(mark->end - mark->beg > n);
+    MD_ASSERT(dummy->ch == 'D');
+
+    memcpy(dummy, mark, sizeof(MD_MARK));
+    mark->end -= n;
+    dummy->beg = mark->end;
+
+    return new_mark_index;
+}
+
+static void
+md_analyze_emph(MD_CTX* ctx, int mark_index)
+{
+    MD_MARK* mark = &ctx->marks[mark_index];
+    MD_MARKCHAIN* chain = md_mark_chain(ctx, mark_index);
+
+    /* If we can be a closer, try to resolve with the preceding opener. */
+    if(mark->flags & MD_MARK_POTENTIAL_CLOSER) {
+        MD_MARK* opener = NULL;
+        int opener_index;
+
+        if(mark->ch == _T('*')) {
+            MD_MARKCHAIN* opener_chains[6];
+            int i, n_opener_chains;
+            unsigned flags = mark->flags;
+
+            /* Apply "rule of three". (This is why we break asterisk opener
+             * marks into multiple chains.) */
+            n_opener_chains = 0;
+            opener_chains[n_opener_chains++] = &ASTERISK_OPENERS_intraword_mod3_0;
+            if((flags & MD_MARK_EMPH_MOD3_MASK) != MD_MARK_EMPH_MOD3_2)
+                opener_chains[n_opener_chains++] = &ASTERISK_OPENERS_intraword_mod3_1;
+            if((flags & MD_MARK_EMPH_MOD3_MASK) != MD_MARK_EMPH_MOD3_1)
+                opener_chains[n_opener_chains++] = &ASTERISK_OPENERS_intraword_mod3_2;
+            opener_chains[n_opener_chains++] = &ASTERISK_OPENERS_extraword_mod3_0;
+            if(!(flags & MD_MARK_EMPH_INTRAWORD)  ||  (flags & MD_MARK_EMPH_MOD3_MASK) != MD_MARK_EMPH_MOD3_2)
+                opener_chains[n_opener_chains++] = &ASTERISK_OPENERS_extraword_mod3_1;
+            if(!(flags & MD_MARK_EMPH_INTRAWORD)  ||  (flags & MD_MARK_EMPH_MOD3_MASK) != MD_MARK_EMPH_MOD3_1)
+                opener_chains[n_opener_chains++] = &ASTERISK_OPENERS_extraword_mod3_2;
+
+            /* Opener is the most recent mark from the allowed chains. */
+            for(i = 0; i < n_opener_chains; i++) {
+                if(opener_chains[i]->tail >= 0) {
+                    int tmp_index = opener_chains[i]->tail;
+                    MD_MARK* tmp_mark = &ctx->marks[tmp_index];
+                    if(opener == NULL  ||  tmp_mark->end > opener->end) {
+                        opener_index = tmp_index;
+                        opener = tmp_mark;
+                    }
+                }
+            }
+        } else {
+            /* Simple emph. mark */
+            if(chain->tail >= 0) {
+                opener_index = chain->tail;
+                opener = &ctx->marks[opener_index];
+            }
+        }
+
+        /* Resolve, if we have found matching opener. */
+        if(opener != NULL) {
+            SZ opener_size = opener->end - opener->beg;
+            SZ closer_size = mark->end - mark->beg;
+            MD_MARKCHAIN* opener_chain = md_mark_chain(ctx, mark_index);
+
+            if(opener_size > closer_size) {
+                opener_index = md_split_emph_mark(ctx, opener_index, closer_size);
+                md_mark_chain_append(ctx, opener_chain, opener_index);
+            } else if(opener_size < closer_size) {
+                md_split_emph_mark(ctx, mark_index, closer_size - opener_size);
+            }
+
+            md_rollback(ctx, opener_index, mark_index, MD_ROLLBACK_CROSSING);
+            md_resolve_range(ctx, opener_chain, opener_index, mark_index);
+            return;
+        }
+    }
+
+    /* If we could not resolve as closer, we may be yet be an opener. */
+    if(mark->flags & MD_MARK_POTENTIAL_OPENER)
+        md_mark_chain_append(ctx, chain, mark_index);
+}
+
+static void
+md_analyze_tilde(MD_CTX* ctx, int mark_index)
+{
+    /* We attempt to be Github Flavored Markdown compatible here. GFM says
+     * that length of the tilde sequence is not important at all. Note that
+     * implies the TILDE_OPENERS chain can have at most one item. */
+
+    if(TILDE_OPENERS.head >= 0) {
+        /* The chain already contains an opener, so we may resolve the span. */
+        int opener_index = TILDE_OPENERS.head;
+
+        md_rollback(ctx, opener_index, mark_index, MD_ROLLBACK_CROSSING);
+        md_resolve_range(ctx, &TILDE_OPENERS, opener_index, mark_index);
+    } else {
+        /* We can only be opener. */
+        md_mark_chain_append(ctx, &TILDE_OPENERS, mark_index);
+    }
+}
+
+static void
+md_analyze_dollar(MD_CTX* ctx, int mark_index)
+{
+    /* This should mimic the way inline equations work in LaTeX, so there
+     * can only ever be one item in the chain (i.e. the dollars can't be
+     * nested). This is basically the same as the md_analyze_tilde function,
+     * except that we require matching openers and closers to be of the same
+     * length.
+     *
+     * E.g.: $abc$$def$$ => abc (display equation) def (end equation) */
+    if(DOLLAR_OPENERS.head >= 0) {
+        /* If the potential closer has a non-matching number of $, discard */
+        MD_MARK* open = &ctx->marks[DOLLAR_OPENERS.head];
+        MD_MARK* close = &ctx->marks[mark_index];
+
+        int opener_index = DOLLAR_OPENERS.head;
+        md_rollback(ctx, opener_index, mark_index, MD_ROLLBACK_ALL);
+        if (open->end - open->beg == close->end - close->beg) {
+            /* We are the matching closer */
+            md_resolve_range(ctx, &DOLLAR_OPENERS, opener_index, mark_index);
+        } else {
+            /* We don't match the opener, so discard old opener and insert as opener */
+            md_mark_chain_append(ctx, &DOLLAR_OPENERS, mark_index);
+        }
+    } else {
+        /* No unmatched openers, so we are opener */
+        md_mark_chain_append(ctx, &DOLLAR_OPENERS, mark_index);
+    }
+}
+
+static void
+md_analyze_permissive_url_autolink(MD_CTX* ctx, int mark_index)
+{
+    MD_MARK* opener = &ctx->marks[mark_index];
+    int closer_index = mark_index + 1;
+    MD_MARK* closer = &ctx->marks[closer_index];
+    MD_MARK* next_resolved_mark;
+    OFF off = opener->end;
+    int n_dots = FALSE;
+    int has_underscore_in_last_seg = FALSE;
+    int has_underscore_in_next_to_last_seg = FALSE;
+    int n_opened_parenthesis = 0;
+
+    /* Check for domain. */
+    while(off < ctx->size) {
+        if(ISALNUM(off) || CH(off) == _T('-')) {
+            off++;
+        } else if(CH(off) == _T('.')) {
+            /* We must see at least one period. */
+            n_dots++;
+            has_underscore_in_next_to_last_seg = has_underscore_in_last_seg;
+            has_underscore_in_last_seg = FALSE;
+            off++;
+        } else if(CH(off) == _T('_')) {
+            /* No underscore may be present in the last two domain segments. */
+            has_underscore_in_last_seg = TRUE;
+            off++;
+        } else {
+            break;
+        }
+    }
+    if(off > opener->end  &&  CH(off-1) == _T('.')) {
+        off--;
+        n_dots--;
+    }
+    if(off <= opener->end || n_dots == 0 || has_underscore_in_next_to_last_seg || has_underscore_in_last_seg)
+        return;
+
+    /* Check for path. */
+    next_resolved_mark = closer + 1;
+    while(next_resolved_mark->ch == 'D' || !(next_resolved_mark->flags & MD_MARK_RESOLVED))
+        next_resolved_mark++;
+    while(off < next_resolved_mark->beg  &&  CH(off) != _T('<')  &&  !ISWHITESPACE(off)  &&  !ISNEWLINE(off)) {
+        /* Parenthesis must be balanced. */
+        if(CH(off) == _T('(')) {
+            n_opened_parenthesis++;
+        } else if(CH(off) == _T(')')) {
+            if(n_opened_parenthesis > 0)
+                n_opened_parenthesis--;
+            else
+                break;
+        }
+
+        off++;
+    }
+    /* These cannot be last char In such case they are more likely normal
+     * punctuation. */
+    if(ISANYOF(off-1, _T("?!.,:*_~")))
+        off--;
+
+    /* Ok. Lets call it auto-link. Adapt opener and create closer to zero
+     * length so all the contents becomes the link text. */
+    MD_ASSERT(closer->ch == 'D');
+    opener->end = opener->beg;
+    closer->ch = opener->ch;
+    closer->beg = off;
+    closer->end = off;
+    md_resolve_range(ctx, NULL, mark_index, closer_index);
+}
+
+/* The permissive autolinks do not have to be enclosed in '<' '>' but we
+ * instead impose stricter rules what is understood as an e-mail address
+ * here. Actually any non-alphanumeric characters with exception of '.'
+ * are prohibited both in username and after '@'. */
+static void
+md_analyze_permissive_email_autolink(MD_CTX* ctx, int mark_index)
+{
+    MD_MARK* opener = &ctx->marks[mark_index];
+    int closer_index;
+    MD_MARK* closer;
+    OFF beg = opener->beg;
+    OFF end = opener->end;
+    int dot_count = 0;
+
+    MD_ASSERT(CH(beg) == _T('@'));
+
+    /* Scan for name before '@'. */
+    while(beg > 0  &&  (ISALNUM(beg-1) || ISANYOF(beg-1, _T(".-_+"))))
+        beg--;
+
+    /* Scan for domain after '@'. */
+    while(end < ctx->size  &&  (ISALNUM(end) || ISANYOF(end, _T(".-_")))) {
+        if(CH(end) == _T('.'))
+            dot_count++;
+        end++;
+    }
+    if(CH(end-1) == _T('.')) {  /* Final '.' not part of it. */
+        dot_count--;
+        end--;
+    }
+    else if(ISANYOF2(end-1, _T('-'), _T('_'))) /* These are forbidden at the end. */
+        return;
+    if(CH(end-1) == _T('@')  ||  dot_count == 0)
+        return;
+
+    /* Ok. Lets call it auto-link. Adapt opener and create closer to zero
+     * length so all the contents becomes the link text. */
+    closer_index = mark_index + 1;
+    closer = &ctx->marks[closer_index];
+    MD_ASSERT(closer->ch == 'D');
+
+    opener->beg = beg;
+    opener->end = beg;
+    closer->ch = opener->ch;
+    closer->beg = end;
+    closer->end = end;
+    md_resolve_range(ctx, NULL, mark_index, closer_index);
+}
+
+static inline void
+md_analyze_marks(MD_CTX* ctx, const MD_LINE* lines, int n_lines,
+                 int mark_beg, int mark_end, const CHAR* mark_chars)
+{
+    int i = mark_beg;
+
+    while(i < mark_end) {
+        MD_MARK* mark = &ctx->marks[i];
+
+        /* Skip resolved spans. */
+        if(mark->flags & MD_MARK_RESOLVED) {
+            if(mark->flags & MD_MARK_OPENER) {
+                MD_ASSERT(i < mark->next);
+                i = mark->next + 1;
+            } else {
+                i++;
+            }
+            continue;
+        }
+
+        /* Skip marks we do not want to deal with. */
+        if(!ISANYOF_(mark->ch, mark_chars)) {
+            i++;
+            continue;
+        }
+
+        /* Analyze the mark. */
+        switch(mark->ch) {
+            case '[':   /* Pass through. */
+            case '!':   /* Pass through. */
+            case ']':   md_analyze_bracket(ctx, i); break;
+            case '&':   md_analyze_entity(ctx, i); break;
+            case '|':   md_analyze_table_cell_boundary(ctx, i); break;
+            case '_':   /* Pass through. */
+            case '*':   md_analyze_emph(ctx, i); break;
+            case '~':   md_analyze_tilde(ctx, i); break;
+            case '$':   md_analyze_dollar(ctx, i); break;
+            case '.':   /* Pass through. */
+            case ':':   md_analyze_permissive_url_autolink(ctx, i); break;
+            case '@':   md_analyze_permissive_email_autolink(ctx, i); break;
+        }
+
+        i++;
+    }
+}
+
+/* Analyze marks (build ctx->marks). */
+static int
+md_analyze_inlines(MD_CTX* ctx, const MD_LINE* lines, int n_lines, int table_mode)
+{
+    int ret;
+
+    /* Reset the previously collected stack of marks. */
+    ctx->n_marks = 0;
+
+    /* Collect all marks. */
+    MD_CHECK(md_collect_marks(ctx, lines, n_lines, table_mode));
+
+    /* We analyze marks in few groups to handle their precedence. */
+    /* (1) Entities; code spans; autolinks; raw HTML. */
+    md_analyze_marks(ctx, lines, n_lines, 0, ctx->n_marks, _T("&"));
+
+    /* (2) Links. */
+    md_analyze_marks(ctx, lines, n_lines, 0, ctx->n_marks, _T("[]!"));
+    MD_CHECK(md_resolve_links(ctx, lines, n_lines));
+    BRACKET_OPENERS.head = -1;
+    BRACKET_OPENERS.tail = -1;
+    ctx->unresolved_link_head = -1;
+    ctx->unresolved_link_tail = -1;
+
+    if(table_mode) {
+        /* (3) Analyze table cell boundaries.
+         * Note we reset TABLECELLBOUNDARIES chain prior to the call md_analyze_marks(),
+         * not after, because caller may need it. */
+        MD_ASSERT(n_lines == 1);
+        TABLECELLBOUNDARIES.head = -1;
+        TABLECELLBOUNDARIES.tail = -1;
+        ctx->n_table_cell_boundaries = 0;
+        md_analyze_marks(ctx, lines, n_lines, 0, ctx->n_marks, _T("|"));
+        return ret;
+    }
+
+    /* (4) Emphasis and strong emphasis; permissive autolinks. */
+    md_analyze_link_contents(ctx, lines, n_lines, 0, ctx->n_marks);
+
+abort:
+    return ret;
+}
+
+static void
+md_analyze_link_contents(MD_CTX* ctx, const MD_LINE* lines, int n_lines,
+                         int mark_beg, int mark_end)
+{
+    md_analyze_marks(ctx, lines, n_lines, mark_beg, mark_end, _T("*_~$@:."));
+    ASTERISK_OPENERS_extraword_mod3_0.head = -1;
+    ASTERISK_OPENERS_extraword_mod3_0.tail = -1;
+    ASTERISK_OPENERS_extraword_mod3_1.head = -1;
+    ASTERISK_OPENERS_extraword_mod3_1.tail = -1;
+    ASTERISK_OPENERS_extraword_mod3_2.head = -1;
+    ASTERISK_OPENERS_extraword_mod3_2.tail = -1;
+    ASTERISK_OPENERS_intraword_mod3_0.head = -1;
+    ASTERISK_OPENERS_intraword_mod3_0.tail = -1;
+    ASTERISK_OPENERS_intraword_mod3_1.head = -1;
+    ASTERISK_OPENERS_intraword_mod3_1.tail = -1;
+    ASTERISK_OPENERS_intraword_mod3_2.head = -1;
+    ASTERISK_OPENERS_intraword_mod3_2.tail = -1;
+    UNDERSCORE_OPENERS.head = -1;
+    UNDERSCORE_OPENERS.tail = -1;
+    TILDE_OPENERS.head = -1;
+    TILDE_OPENERS.tail = -1;
+    DOLLAR_OPENERS.head = -1;
+    DOLLAR_OPENERS.tail = -1;
+}
+
+static int
+md_enter_leave_span_a(MD_CTX* ctx, int enter, MD_SPANTYPE type,
+                      const CHAR* dest, SZ dest_size, int prohibit_escapes_in_dest,
+                      const CHAR* title, SZ title_size)
+{
+    MD_ATTRIBUTE_BUILD href_build = { 0 };
+    MD_ATTRIBUTE_BUILD title_build = { 0 };
+    MD_SPAN_A_DETAIL det;
+    int ret = 0;
+
+    /* Note we here rely on fact that MD_SPAN_A_DETAIL and
+     * MD_SPAN_IMG_DETAIL are binary-compatible. */
+    memset(&det, 0, sizeof(MD_SPAN_A_DETAIL));
+    MD_CHECK(md_build_attribute(ctx, dest, dest_size,
+                    (prohibit_escapes_in_dest ? MD_BUILD_ATTR_NO_ESCAPES : 0),
+                    &det.href, &href_build));
+    MD_CHECK(md_build_attribute(ctx, title, title_size, 0, &det.title, &title_build));
+
+    if(enter)
+        MD_ENTER_SPAN(type, &det);
+    else
+        MD_LEAVE_SPAN(type, &det);
+
+abort:
+    md_free_attribute(ctx, &href_build);
+    md_free_attribute(ctx, &title_build);
+    return ret;
+}
+
+static int
+md_enter_leave_span_wikilink(MD_CTX* ctx, int enter, const CHAR* target, SZ target_size)
+{
+    MD_ATTRIBUTE_BUILD target_build = { 0 };
+    MD_SPAN_WIKILINK_DETAIL det;
+    int ret = 0;
+
+    memset(&det, 0, sizeof(MD_SPAN_WIKILINK_DETAIL));
+    MD_CHECK(md_build_attribute(ctx, target, target_size, 0, &det.target, &target_build));
+
+    if (enter)
+        MD_ENTER_SPAN(MD_SPAN_WIKILINK, &det);
+    else
+        MD_LEAVE_SPAN(MD_SPAN_WIKILINK, &det);
+
+abort:
+    md_free_attribute(ctx, &target_build);
+    return ret;
+}
+
+
+/* Render the output, accordingly to the analyzed ctx->marks. */
+static int
+md_process_inlines(MD_CTX* ctx, const MD_LINE* lines, int n_lines)
+{
+    MD_TEXTTYPE text_type;
+    const MD_LINE* line = lines;
+    MD_MARK* prev_mark = NULL;
+    MD_MARK* mark;
+    OFF off = lines[0].beg;
+    OFF end = lines[n_lines-1].end;
+    int enforce_hardbreak = 0;
+    int ret = 0;
+
+    /* Find first resolved mark. Note there is always at least one resolved
+     * mark,  the dummy last one after the end of the latest line we actually
+     * never really reach. This saves us of a lot of special checks and cases
+     * in this function. */
+    mark = ctx->marks;
+    while(!(mark->flags & MD_MARK_RESOLVED))
+        mark++;
+
+    text_type = MD_TEXT_NORMAL;
+
+    while(1) {
+        /* Process the text up to the next mark or end-of-line. */
+        OFF tmp = (line->end < mark->beg ? line->end : mark->beg);
+        if(tmp > off) {
+            MD_TEXT(text_type, STR(off), tmp - off);
+            off = tmp;
+        }
+
+        /* If reached the mark, process it and move to next one. */
+        if(off >= mark->beg) {
+            switch(mark->ch) {
+                case '\\':      /* Backslash escape. */
+                    if(ISNEWLINE(mark->beg+1))
+                        enforce_hardbreak = 1;
+                    else
+                        MD_TEXT(text_type, STR(mark->beg+1), 1);
+                    break;
+
+                case ' ':       /* Non-trivial space. */
+                    MD_TEXT(text_type, _T(" "), 1);
+                    break;
+
+                case '`':       /* Code span. */
+                    if(mark->flags & MD_MARK_OPENER) {
+                        MD_ENTER_SPAN(MD_SPAN_CODE, NULL);
+                        text_type = MD_TEXT_CODE;
+                    } else {
+                        MD_LEAVE_SPAN(MD_SPAN_CODE, NULL);
+                        text_type = MD_TEXT_NORMAL;
+                    }
+                    break;
+
+                case '_':
+                case '*':       /* Emphasis, strong emphasis. */
+                    if(mark->flags & MD_MARK_OPENER) {
+                        if((mark->end - off) % 2) {
+                            MD_ENTER_SPAN(MD_SPAN_EM, NULL);
+                            off++;
+                        }
+                        while(off + 1 < mark->end) {
+                            MD_ENTER_SPAN(MD_SPAN_STRONG, NULL);
+                            off += 2;
+                        }
+                    } else {
+                        while(off + 1 < mark->end) {
+                            MD_LEAVE_SPAN(MD_SPAN_STRONG, NULL);
+                            off += 2;
+                        }
+                        if((mark->end - off) % 2) {
+                            MD_LEAVE_SPAN(MD_SPAN_EM, NULL);
+                            off++;
+                        }
+                    }
+                    break;
+
+                case '~':
+                    if(mark->flags & MD_MARK_OPENER)
+                        MD_ENTER_SPAN(MD_SPAN_DEL, NULL);
+                    else
+                        MD_LEAVE_SPAN(MD_SPAN_DEL, NULL);
+                    break;
+
+                case '$':
+                    if(mark->flags & MD_MARK_OPENER) {
+                        MD_ENTER_SPAN((mark->end - off) % 2 ? MD_SPAN_LATEXMATH : MD_SPAN_LATEXMATH_DISPLAY, NULL);
+                        text_type = MD_TEXT_LATEXMATH;
+                    } else {
+                        MD_LEAVE_SPAN((mark->end - off) % 2 ? MD_SPAN_LATEXMATH : MD_SPAN_LATEXMATH_DISPLAY, NULL);
+                        text_type = MD_TEXT_NORMAL;
+                    }
+                    break;
+
+                case '[':       /* Link, wiki link, image. */
+                case '!':
+                case ']':
+                {
+                    const MD_MARK* opener = (mark->ch != ']' ? mark : &ctx->marks[mark->prev]);
+                    const MD_MARK* closer = &ctx->marks[opener->next];
+
+                    if ((opener->ch == '[' && closer->ch == ']') &&
+                        opener->end - opener->beg >= 2 &&
+                        closer->end - closer->beg == 2)
+                    {
+                        const MD_MARK* delim = opener+3;  /* Scan past the two dummy marks. */
+                        int has_label = (opener->end - opener->beg > 2);
+                        int target_sz;
+
+                        if(has_label)
+                            target_sz = opener->end - (opener->beg+2);
+                        else if(delim->ch == '|')
+                            target_sz = (closer->beg-1) - opener->end;
+                        else
+                            target_sz = closer->beg - opener->end;
+
+                        MD_CHECK(md_enter_leave_span_wikilink(ctx, (mark->ch != ']'),
+                                 has_label ? STR(opener->beg+2) : STR(opener->end),
+                                 target_sz));
+
+                        break;
+                    }
+
+                    const MD_MARK* dest_mark = opener+1;
+                    const MD_MARK* title_mark = opener+2;
+
+                    MD_ASSERT(dest_mark->ch == 'D');
+                    MD_ASSERT(title_mark->ch == 'D');
+
+                    MD_CHECK(md_enter_leave_span_a(ctx, (mark->ch != ']'),
+                                (opener->ch == '!' ? MD_SPAN_IMG : MD_SPAN_A),
+                                STR(dest_mark->beg), dest_mark->end - dest_mark->beg, FALSE,
+                                md_mark_get_ptr(ctx, title_mark - ctx->marks), title_mark->prev));
+
+                    /* link/image closer may span multiple lines. */
+                    if(mark->ch == ']') {
+                        while(mark->end > line->end)
+                            line++;
+                    }
+
+                    break;
+                }
+
+                case '<':
+                case '>':       /* Autolink or raw HTML. */
+                    if(!(mark->flags & MD_MARK_AUTOLINK)) {
+                        /* Raw HTML. */
+                        if(mark->flags & MD_MARK_OPENER)
+                            text_type = MD_TEXT_HTML;
+                        else
+                            text_type = MD_TEXT_NORMAL;
+                        break;
+                    }
+                    /* Pass through, if auto-link. */
+
+                case '@':       /* Permissive e-mail autolink. */
+                case ':':       /* Permissive URL autolink. */
+                case '.':       /* Permissive WWW autolink. */
+                {
+                    MD_MARK* opener = ((mark->flags & MD_MARK_OPENER) ? mark : &ctx->marks[mark->prev]);
+                    MD_MARK* closer = &ctx->marks[opener->next];
+                    const CHAR* dest = STR(opener->end);
+                    SZ dest_size = closer->beg - opener->end;
+
+                    /* For permissive auto-links we do not know closer mark
+                     * position at the time of md_collect_marks(), therefore
+                     * it can be out-of-order in ctx->marks[].
+                     *
+                     * With this flag, we make sure that we output the closer
+                     * only if we processed the opener. */
+                    if(mark->flags & MD_MARK_OPENER)
+                        closer->flags |= MD_MARK_VALIDPERMISSIVEAUTOLINK;
+
+                    if(opener->ch == '@' || opener->ch == '.') {
+                        dest_size += 7;
+                        MD_TEMP_BUFFER(dest_size * sizeof(CHAR));
+                        memcpy(ctx->buffer,
+                                (opener->ch == '@' ? _T("mailto:") : _T("http://")),
+                                7 * sizeof(CHAR));
+                        memcpy(ctx->buffer + 7, dest, (dest_size-7) * sizeof(CHAR));
+                        dest = ctx->buffer;
+                    }
+
+                    if(closer->flags & MD_MARK_VALIDPERMISSIVEAUTOLINK)
+                        MD_CHECK(md_enter_leave_span_a(ctx, (mark->flags & MD_MARK_OPENER),
+                                    MD_SPAN_A, dest, dest_size, TRUE, NULL, 0));
+                    break;
+                }
+
+                case '&':       /* Entity. */
+                    MD_TEXT(MD_TEXT_ENTITY, STR(mark->beg), mark->end - mark->beg);
+                    break;
+
+                case '\0':
+                    MD_TEXT(MD_TEXT_NULLCHAR, _T(""), 1);
+                    break;
+
+                case 127:
+                    goto abort;
+            }
+
+            off = mark->end;
+
+            /* Move to next resolved mark. */
+            prev_mark = mark;
+            mark++;
+            while(!(mark->flags & MD_MARK_RESOLVED)  ||  mark->beg < off)
+                mark++;
+        }
+
+        /* If reached end of line, move to next one. */
+        if(off >= line->end) {
+            /* If it is the last line, we are done. */
+            if(off >= end)
+                break;
+
+            if(text_type == MD_TEXT_CODE || text_type == MD_TEXT_LATEXMATH) {
+                OFF tmp;
+
+                MD_ASSERT(prev_mark != NULL);
+                MD_ASSERT(ISANYOF2_(prev_mark->ch, '`', '$')  &&  (prev_mark->flags & MD_MARK_OPENER));
+                MD_ASSERT(ISANYOF2_(mark->ch, '`', '$')  &&  (mark->flags & MD_MARK_CLOSER));
+
+                /* Inside a code span, trailing line whitespace has to be
+                 * outputted. */
+                tmp = off;
+                while(off < ctx->size  &&  ISBLANK(off))
+                    off++;
+                if(off > tmp)
+                    MD_TEXT(text_type, STR(tmp), off-tmp);
+
+                /* and new lines are transformed into single spaces. */
+                if(prev_mark->end < off  &&  off < mark->beg)
+                    MD_TEXT(text_type, _T(" "), 1);
+            } else if(text_type == MD_TEXT_HTML) {
+                /* Inside raw HTML, we output the new line verbatim, including
+                 * any trailing spaces. */
+                OFF tmp = off;
+
+                while(tmp < end  &&  ISBLANK(tmp))
+                    tmp++;
+                if(tmp > off)
+                    MD_TEXT(MD_TEXT_HTML, STR(off), tmp - off);
+                MD_TEXT(MD_TEXT_HTML, _T("\n"), 1);
+            } else {
+                /* Output soft or hard line break. */
+                MD_TEXTTYPE break_type = MD_TEXT_SOFTBR;
+
+                if(text_type == MD_TEXT_NORMAL) {
+                    if(enforce_hardbreak)
+                        break_type = MD_TEXT_BR;
+                    else if((CH(line->end) == _T(' ') && CH(line->end+1) == _T(' ')))
+                        break_type = MD_TEXT_BR;
+                }
+
+                MD_TEXT(break_type, _T("\n"), 1);
+            }
+
+            /* Move to the next line. */
+            line++;
+            off = line->beg;
+
+            enforce_hardbreak = 0;
+        }
+    }
+
+abort:
+    return ret;
+}
+
+
+/***************************
+ ***  Processing Tables  ***
+ ***************************/
+
+static void
+md_analyze_table_alignment(MD_CTX* ctx, OFF beg, OFF end, MD_ALIGN* align, int n_align)
+{
+    static const MD_ALIGN align_map[] = { MD_ALIGN_DEFAULT, MD_ALIGN_LEFT, MD_ALIGN_RIGHT, MD_ALIGN_CENTER };
+    OFF off = beg;
+
+    while(n_align > 0) {
+        int index = 0;  /* index into align_map[] */
+
+        while(CH(off) != _T('-'))
+            off++;
+        if(off > beg  &&  CH(off-1) == _T(':'))
+            index |= 1;
+        while(off < end  &&  CH(off) == _T('-'))
+            off++;
+        if(off < end  &&  CH(off) == _T(':'))
+            index |= 2;
+
+        *align = align_map[index];
+        align++;
+        n_align--;
+    }
+
+}
+
+/* Forward declaration. */
+static int md_process_normal_block_contents(MD_CTX* ctx, const MD_LINE* lines, int n_lines);
+
+static int
+md_process_table_cell(MD_CTX* ctx, MD_BLOCKTYPE cell_type, MD_ALIGN align, OFF beg, OFF end)
+{
+    MD_LINE line;
+    MD_BLOCK_TD_DETAIL det;
+    int ret = 0;
+
+    while(beg < end  &&  ISWHITESPACE(beg))
+        beg++;
+    while(end > beg  &&  ISWHITESPACE(end-1))
+        end--;
+
+    det.align = align;
+    line.beg = beg;
+    line.end = end;
+
+    MD_ENTER_BLOCK(cell_type, &det);
+    MD_CHECK(md_process_normal_block_contents(ctx, &line, 1));
+    MD_LEAVE_BLOCK(cell_type, &det);
+
+abort:
+    return ret;
+}
+
+static int
+md_process_table_row(MD_CTX* ctx, MD_BLOCKTYPE cell_type, OFF beg, OFF end,
+                     const MD_ALIGN* align, int col_count)
+{
+    MD_LINE line;
+    OFF* pipe_offs = NULL;
+    int i, j, k, n;
+    int ret = 0;
+
+    line.beg = beg;
+    line.end = end;
+
+    /* Break the line into table cells by identifying pipe characters who
+     * form the cell boundary. */
+    MD_CHECK(md_analyze_inlines(ctx, &line, 1, TRUE));
+
+    /* We have to remember the cell boundaries in local buffer because
+     * ctx->marks[] shall be reused during cell contents processing. */
+    n = ctx->n_table_cell_boundaries + 2;
+    pipe_offs = (OFF*) malloc(n * sizeof(OFF));
+    if(pipe_offs == NULL) {
+        MD_LOG("malloc() failed.");
+        ret = -1;
+        goto abort;
+    }
+    j = 0;
+    pipe_offs[j++] = beg;
+    for(i = TABLECELLBOUNDARIES.head; i >= 0; i = ctx->marks[i].next) {
+        MD_MARK* mark = &ctx->marks[i];
+        pipe_offs[j++] = mark->end;
+    }
+    pipe_offs[j++] = end+1;
+
+    /* Process cells. */
+    MD_ENTER_BLOCK(MD_BLOCK_TR, NULL);
+    k = 0;
+    for(i = 0; i < j-1  &&  k < col_count; i++) {
+        if(pipe_offs[i] < pipe_offs[i+1]-1)
+            MD_CHECK(md_process_table_cell(ctx, cell_type, align[k++], pipe_offs[i], pipe_offs[i+1]-1));
+    }
+    /* Make sure we call enough table cells even if the current table contains
+     * too few of them. */
+    while(k < col_count)
+        MD_CHECK(md_process_table_cell(ctx, cell_type, align[k++], 0, 0));
+    MD_LEAVE_BLOCK(MD_BLOCK_TR, NULL);
+
+abort:
+    free(pipe_offs);
+
+    /* Free any temporary memory blocks stored within some dummy marks. */
+    for(i = PTR_CHAIN.head; i >= 0; i = ctx->marks[i].next)
+        free(md_mark_get_ptr(ctx, i));
+    PTR_CHAIN.head = -1;
+    PTR_CHAIN.tail = -1;
+
+    return ret;
+}
+
+static int
+md_process_table_block_contents(MD_CTX* ctx, int col_count, const MD_LINE* lines, int n_lines)
+{
+    MD_ALIGN* align;
+    int i;
+    int ret = 0;
+
+    /* At least two lines have to be present: The column headers and the line
+     * with the underlines. */
+    MD_ASSERT(n_lines >= 2);
+
+    align = malloc(col_count * sizeof(MD_ALIGN));
+    if(align == NULL) {
+        MD_LOG("malloc() failed.");
+        ret = -1;
+        goto abort;
+    }
+
+    md_analyze_table_alignment(ctx, lines[1].beg, lines[1].end, align, col_count);
+
+    MD_ENTER_BLOCK(MD_BLOCK_THEAD, NULL);
+    MD_CHECK(md_process_table_row(ctx, MD_BLOCK_TH,
+                        lines[0].beg, lines[0].end, align, col_count));
+    MD_LEAVE_BLOCK(MD_BLOCK_THEAD, NULL);
+
+    MD_ENTER_BLOCK(MD_BLOCK_TBODY, NULL);
+    for(i = 2; i < n_lines; i++) {
+        MD_CHECK(md_process_table_row(ctx, MD_BLOCK_TD,
+                        lines[i].beg, lines[i].end, align, col_count));
+    }
+    MD_LEAVE_BLOCK(MD_BLOCK_TBODY, NULL);
+
+abort:
+    free(align);
+    return ret;
+}
+
+
+/**************************
+ ***  Processing Block  ***
+ **************************/
+
+#define MD_BLOCK_CONTAINER_OPENER   0x01
+#define MD_BLOCK_CONTAINER_CLOSER   0x02
+#define MD_BLOCK_CONTAINER          (MD_BLOCK_CONTAINER_OPENER | MD_BLOCK_CONTAINER_CLOSER)
+#define MD_BLOCK_LOOSE_LIST         0x04
+#define MD_BLOCK_SETEXT_HEADER      0x08
+
+struct MD_BLOCK_tag {
+    MD_BLOCKTYPE type  :  8;
+    unsigned flags     :  8;
+
+    /* MD_BLOCK_H:      Header level (1 - 6)
+     * MD_BLOCK_CODE:   Non-zero if fenced, zero if indented.
+     * MD_BLOCK_LI:     Task mark character (0 if not task list item, 'x', 'X' or ' ').
+     * MD_BLOCK_TABLE:  Column count (as determined by the table underline).
+     */
+    unsigned data      : 16;
+
+    /* Leaf blocks:     Count of lines (MD_LINE or MD_VERBATIMLINE) on the block.
+     * MD_BLOCK_LI:     Task mark offset in the input doc.
+     * MD_BLOCK_OL:     Start item number.
+     */
+    unsigned n_lines;
+};
+
+struct MD_CONTAINER_tag {
+    CHAR ch;
+    unsigned is_loose    : 8;
+    unsigned is_task     : 8;
+    unsigned start;
+    unsigned mark_indent;
+    unsigned contents_indent;
+    OFF block_byte_off;
+    OFF task_mark_off;
+};
+
+
+static int
+md_process_normal_block_contents(MD_CTX* ctx, const MD_LINE* lines, int n_lines)
+{
+    int i;
+    int ret;
+
+    MD_CHECK(md_analyze_inlines(ctx, lines, n_lines, FALSE));
+    MD_CHECK(md_process_inlines(ctx, lines, n_lines));
+
+abort:
+    /* Free any temporary memory blocks stored within some dummy marks. */
+    for(i = PTR_CHAIN.head; i >= 0; i = ctx->marks[i].next)
+        free(md_mark_get_ptr(ctx, i));
+    PTR_CHAIN.head = -1;
+    PTR_CHAIN.tail = -1;
+
+    return ret;
+}
+
+static int
+md_process_verbatim_block_contents(MD_CTX* ctx, MD_TEXTTYPE text_type, const MD_VERBATIMLINE* lines, int n_lines)
+{
+    static const CHAR indent_chunk_str[] = _T("                ");
+    static const SZ indent_chunk_size = SIZEOF_ARRAY(indent_chunk_str) - 1;
+
+    int i;
+    int ret = 0;
+
+    for(i = 0; i < n_lines; i++) {
+        const MD_VERBATIMLINE* line = &lines[i];
+        int indent = line->indent;
+
+        MD_ASSERT(indent >= 0);
+
+        /* Output code indentation. */
+        while(indent > (int) SIZEOF_ARRAY(indent_chunk_str)) {
+            MD_TEXT(text_type, indent_chunk_str, indent_chunk_size);
+            indent -= SIZEOF_ARRAY(indent_chunk_str);
+        }
+        if(indent > 0)
+            MD_TEXT(text_type, indent_chunk_str, indent);
+
+        /* Output the code line itself. */
+        MD_TEXT_INSECURE(text_type, STR(line->beg), line->end - line->beg);
+
+        /* Enforce end-of-line. */
+        MD_TEXT(text_type, _T("\n"), 1);
+    }
+
+abort:
+    return ret;
+}
+
+static int
+md_process_code_block_contents(MD_CTX* ctx, int is_fenced, const MD_VERBATIMLINE* lines, int n_lines)
+{
+    if(is_fenced) {
+        /* Skip the first line in case of fenced code: It is the fence.
+         * (Only the starting fence is present due to logic in md_analyze_line().) */
+        lines++;
+        n_lines--;
+    } else {
+        /* Ignore blank lines at start/end of indented code block. */
+        while(n_lines > 0  &&  lines[0].beg == lines[0].end) {
+            lines++;
+            n_lines--;
+        }
+        while(n_lines > 0  &&  lines[n_lines-1].beg == lines[n_lines-1].end) {
+            n_lines--;
+        }
+    }
+
+    if(n_lines == 0)
+        return 0;
+
+    return md_process_verbatim_block_contents(ctx, MD_TEXT_CODE, lines, n_lines);
+}
+
+static int
+md_setup_fenced_code_detail(MD_CTX* ctx, const MD_BLOCK* block, MD_BLOCK_CODE_DETAIL* det,
+                            MD_ATTRIBUTE_BUILD* info_build, MD_ATTRIBUTE_BUILD* lang_build)
+{
+    const MD_VERBATIMLINE* fence_line = (const MD_VERBATIMLINE*)(block + 1);
+    OFF beg = fence_line->beg;
+    OFF end = fence_line->end;
+    OFF lang_end;
+    CHAR fence_ch = CH(fence_line->beg);
+    int ret = 0;
+
+    /* Skip the fence itself. */
+    while(beg < ctx->size  &&  CH(beg) == fence_ch)
+        beg++;
+    /* Trim initial spaces. */
+    while(beg < ctx->size  &&  CH(beg) == _T(' '))
+        beg++;
+
+    /* Trim trailing spaces. */
+    while(end > beg  &&  CH(end-1) == _T(' '))
+        end--;
+
+    /* Build info string attribute. */
+    MD_CHECK(md_build_attribute(ctx, STR(beg), end - beg, 0, &det->info, info_build));
+
+    /* Build info string attribute. */
+    lang_end = beg;
+    while(lang_end < end  &&  !ISWHITESPACE(lang_end))
+        lang_end++;
+    MD_CHECK(md_build_attribute(ctx, STR(beg), lang_end - beg, 0, &det->lang, lang_build));
+
+    det->fence_char = fence_ch;
+
+abort:
+    return ret;
+}
+
+static int
+md_process_leaf_block(MD_CTX* ctx, const MD_BLOCK* block)
+{
+    union {
+        MD_BLOCK_H_DETAIL header;
+        MD_BLOCK_CODE_DETAIL code;
+    } det;
+    MD_ATTRIBUTE_BUILD info_build;
+    MD_ATTRIBUTE_BUILD lang_build;
+    int is_in_tight_list;
+    int clean_fence_code_detail = FALSE;
+    int ret = 0;
+
+    memset(&det, 0, sizeof(det));
+
+    if(ctx->n_containers == 0)
+        is_in_tight_list = FALSE;
+    else
+        is_in_tight_list = !ctx->containers[ctx->n_containers-1].is_loose;
+
+    switch(block->type) {
+        case MD_BLOCK_H:
+            det.header.level = block->data;
+            break;
+
+        case MD_BLOCK_CODE:
+            /* For fenced code block, we may need to set the info string. */
+            if(block->data != 0) {
+                memset(&det.code, 0, sizeof(MD_BLOCK_CODE_DETAIL));
+                clean_fence_code_detail = TRUE;
+                MD_CHECK(md_setup_fenced_code_detail(ctx, block, &det.code, &info_build, &lang_build));
+            }
+            break;
+
+        default:
+            /* Noop. */
+            break;
+    }
+
+    if(!is_in_tight_list  ||  block->type != MD_BLOCK_P)
+        MD_ENTER_BLOCK(block->type, (void*) &det);
+
+    /* Process the block contents accordingly to is type. */
+    switch(block->type) {
+        case MD_BLOCK_HR:
+            /* noop */
+            break;
+
+        case MD_BLOCK_CODE:
+            MD_CHECK(md_process_code_block_contents(ctx, (block->data != 0),
+                            (const MD_VERBATIMLINE*)(block + 1), block->n_lines));
+            break;
+
+        case MD_BLOCK_HTML:
+            MD_CHECK(md_process_verbatim_block_contents(ctx, MD_TEXT_HTML,
+                            (const MD_VERBATIMLINE*)(block + 1), block->n_lines));
+            break;
+
+        case MD_BLOCK_TABLE:
+            MD_CHECK(md_process_table_block_contents(ctx, block->data,
+                            (const MD_LINE*)(block + 1), block->n_lines));
+            break;
+
+        default:
+            MD_CHECK(md_process_normal_block_contents(ctx,
+                            (const MD_LINE*)(block + 1), block->n_lines));
+            break;
+    }
+
+    if(!is_in_tight_list  ||  block->type != MD_BLOCK_P)
+        MD_LEAVE_BLOCK(block->type, (void*) &det);
+
+abort:
+    if(clean_fence_code_detail) {
+        md_free_attribute(ctx, &info_build);
+        md_free_attribute(ctx, &lang_build);
+    }
+    return ret;
+}
+
+static int
+md_process_all_blocks(MD_CTX* ctx)
+{
+    int byte_off = 0;
+    int ret = 0;
+
+    /* ctx->containers now is not needed for detection of lists and list items
+     * so we reuse it for tracking what lists are loose or tight. We rely
+     * on the fact the vector is large enough to hold the deepest nesting
+     * level of lists. */
+    ctx->n_containers = 0;
+
+    while(byte_off < ctx->n_block_bytes) {
+        MD_BLOCK* block = (MD_BLOCK*)((char*)ctx->block_bytes + byte_off);
+        union {
+            MD_BLOCK_UL_DETAIL ul;
+            MD_BLOCK_OL_DETAIL ol;
+            MD_BLOCK_LI_DETAIL li;
+        } det;
+
+        switch(block->type) {
+            case MD_BLOCK_UL:
+                det.ul.is_tight = (block->flags & MD_BLOCK_LOOSE_LIST) ? FALSE : TRUE;
+                det.ul.mark = (CHAR) block->data;
+                break;
+
+            case MD_BLOCK_OL:
+                det.ol.start = block->n_lines;
+                det.ol.is_tight =  (block->flags & MD_BLOCK_LOOSE_LIST) ? FALSE : TRUE;
+                det.ol.mark_delimiter = (CHAR) block->data;
+                break;
+
+            case MD_BLOCK_LI:
+                det.li.is_task = (block->data != 0);
+                det.li.task_mark = (CHAR) block->data;
+                det.li.task_mark_offset = (OFF) block->n_lines;
+                break;
+
+            default:
+                /* noop */
+                break;
+        }
+
+        if(block->flags & MD_BLOCK_CONTAINER) {
+            if(block->flags & MD_BLOCK_CONTAINER_CLOSER) {
+                MD_LEAVE_BLOCK(block->type, &det);
+
+                if(block->type == MD_BLOCK_UL || block->type == MD_BLOCK_OL || block->type == MD_BLOCK_QUOTE)
+                    ctx->n_containers--;
+            }
+
+            if(block->flags & MD_BLOCK_CONTAINER_OPENER) {
+                MD_ENTER_BLOCK(block->type, &det);
+
+                if(block->type == MD_BLOCK_UL || block->type == MD_BLOCK_OL) {
+                    ctx->containers[ctx->n_containers].is_loose = (block->flags & MD_BLOCK_LOOSE_LIST);
+                    ctx->n_containers++;
+                } else if(block->type == MD_BLOCK_QUOTE) {
+                    /* This causes that any text in a block quote, even if
+                     * nested inside a tight list item, is wrapped with
+                     * <p>...</p>. */
+                    ctx->containers[ctx->n_containers].is_loose = TRUE;
+                    ctx->n_containers++;
+                }
+            }
+        } else {
+            MD_CHECK(md_process_leaf_block(ctx, block));
+
+            if(block->type == MD_BLOCK_CODE || block->type == MD_BLOCK_HTML)
+                byte_off += block->n_lines * sizeof(MD_VERBATIMLINE);
+            else
+                byte_off += block->n_lines * sizeof(MD_LINE);
+        }
+
+        byte_off += sizeof(MD_BLOCK);
+    }
+
+    ctx->n_block_bytes = 0;
+
+abort:
+    return ret;
+}
+
+
+/************************************
+ ***  Grouping Lines into Blocks  ***
+ ************************************/
+
+static void*
+md_push_block_bytes(MD_CTX* ctx, int n_bytes)
+{
+    void* ptr;
+
+    if(ctx->n_block_bytes + n_bytes > ctx->alloc_block_bytes) {
+        void* new_block_bytes;
+
+        ctx->alloc_block_bytes = (ctx->alloc_block_bytes > 0 ? ctx->alloc_block_bytes * 2 : 512);
+        new_block_bytes = realloc(ctx->block_bytes, ctx->alloc_block_bytes);
+        if(new_block_bytes == NULL) {
+            MD_LOG("realloc() failed.");
+            return NULL;
+        }
+
+        /* Fix the ->current_block after the reallocation. */
+        if(ctx->current_block != NULL) {
+            OFF off_current_block = (char*) ctx->current_block - (char*) ctx->block_bytes;
+            ctx->current_block = (MD_BLOCK*) ((char*) new_block_bytes + off_current_block);
+        }
+
+        ctx->block_bytes = new_block_bytes;
+    }
+
+    ptr = (char*)ctx->block_bytes + ctx->n_block_bytes;
+    ctx->n_block_bytes += n_bytes;
+    return ptr;
+}
+
+static int
+md_start_new_block(MD_CTX* ctx, const MD_LINE_ANALYSIS* line)
+{
+    MD_BLOCK* block;
+
+    MD_ASSERT(ctx->current_block == NULL);
+
+    block = (MD_BLOCK*) md_push_block_bytes(ctx, sizeof(MD_BLOCK));
+    if(block == NULL)
+        return -1;
+
+    switch(line->type) {
+        case MD_LINE_HR:
+            block->type = MD_BLOCK_HR;
+            break;
+
+        case MD_LINE_ATXHEADER:
+        case MD_LINE_SETEXTHEADER:
+            block->type = MD_BLOCK_H;
+            break;
+
+        case MD_LINE_FENCEDCODE:
+        case MD_LINE_INDENTEDCODE:
+            block->type = MD_BLOCK_CODE;
+            break;
+
+        case MD_LINE_TEXT:
+            block->type = MD_BLOCK_P;
+            break;
+
+        case MD_LINE_HTML:
+            block->type = MD_BLOCK_HTML;
+            break;
+
+        case MD_LINE_BLANK:
+        case MD_LINE_SETEXTUNDERLINE:
+        case MD_LINE_TABLEUNDERLINE:
+        default:
+            MD_UNREACHABLE();
+            break;
+    }
+
+    block->flags = 0;
+    block->data = line->data;
+    block->n_lines = 0;
+
+    ctx->current_block = block;
+    return 0;
+}
+
+/* Eat from start of current (textual) block any reference definitions and
+ * remember them so we can resolve any links referring to them.
+ *
+ * (Reference definitions can only be at start of it as they cannot break
+ * a paragraph.)
+ */
+static int
+md_consume_link_reference_definitions(MD_CTX* ctx)
+{
+    MD_LINE* lines = (MD_LINE*) (ctx->current_block + 1);
+    int n_lines = ctx->current_block->n_lines;
+    int n = 0;
+
+    /* Compute how many lines at the start of the block form one or more
+     * reference definitions. */
+    while(n < n_lines) {
+        int n_link_ref_lines;
+
+        n_link_ref_lines = md_is_link_reference_definition(ctx,
+                                    lines + n, n_lines - n);
+        /* Not a reference definition? */
+        if(n_link_ref_lines == 0)
+            break;
+
+        /* We fail if it is the ref. def. but it could not be stored due
+         * a memory allocation error. */
+        if(n_link_ref_lines < 0)
+            return -1;
+
+        n += n_link_ref_lines;
+    }
+
+    /* If there was at least one reference definition, we need to remove
+     * its lines from the block, or perhaps even the whole block. */
+    if(n > 0) {
+        if(n == n_lines) {
+            /* Remove complete block. */
+            ctx->n_block_bytes -= n * sizeof(MD_LINE);
+            ctx->n_block_bytes -= sizeof(MD_BLOCK);
+            ctx->current_block = NULL;
+        } else {
+            /* Remove just some initial lines from the block. */
+            memmove(lines, lines + n, (n_lines - n) * sizeof(MD_LINE));
+            ctx->current_block->n_lines -= n;
+            ctx->n_block_bytes -= n * sizeof(MD_LINE);
+        }
+    }
+
+    return 0;
+}
+
+static int
+md_end_current_block(MD_CTX* ctx)
+{
+    int ret = 0;
+
+    if(ctx->current_block == NULL)
+        return ret;
+
+    /* Check whether there is a reference definition. (We do this here instead
+     * of in md_analyze_line() because reference definition can take multiple
+     * lines.) */
+    if(ctx->current_block->type == MD_BLOCK_P  ||
+       (ctx->current_block->type == MD_BLOCK_H  &&  (ctx->current_block->flags & MD_BLOCK_SETEXT_HEADER)))
+    {
+        MD_LINE* lines = (MD_LINE*) (ctx->current_block + 1);
+        if(CH(lines[0].beg) == _T('[')) {
+            MD_CHECK(md_consume_link_reference_definitions(ctx));
+            if(ctx->current_block == NULL)
+                return ret;
+        }
+    }
+
+    if(ctx->current_block->type == MD_BLOCK_H  &&  (ctx->current_block->flags & MD_BLOCK_SETEXT_HEADER)) {
+        int n_lines = ctx->current_block->n_lines;
+
+        if(n_lines > 1) {
+            /* Get rid of the underline. */
+            ctx->current_block->n_lines--;
+            ctx->n_block_bytes -= sizeof(MD_LINE);
+        } else {
+            /* Only the underline has left after eating the ref. defs.
+             * Keep the line as beginning of a new ordinary paragraph. */
+            ctx->current_block->type = MD_BLOCK_P;
+            return 0;
+        }
+    }
+
+    /* Mark we are not building any block anymore. */
+    ctx->current_block = NULL;
+
+abort:
+    return ret;
+}
+
+static int
+md_add_line_into_current_block(MD_CTX* ctx, const MD_LINE_ANALYSIS* analysis)
+{
+    MD_ASSERT(ctx->current_block != NULL);
+
+    if(ctx->current_block->type == MD_BLOCK_CODE || ctx->current_block->type == MD_BLOCK_HTML) {
+        MD_VERBATIMLINE* line;
+
+        line = (MD_VERBATIMLINE*) md_push_block_bytes(ctx, sizeof(MD_VERBATIMLINE));
+        if(line == NULL)
+            return -1;
+
+        line->indent = analysis->indent;
+        line->beg = analysis->beg;
+        line->end = analysis->end;
+    } else {
+        MD_LINE* line;
+
+        line = (MD_LINE*) md_push_block_bytes(ctx, sizeof(MD_LINE));
+        if(line == NULL)
+            return -1;
+
+        line->beg = analysis->beg;
+        line->end = analysis->end;
+        line->total_indent = analysis->total_indent;
+    }
+    ctx->current_block->n_lines++;
+
+    return 0;
+}
+
+static int
+md_push_container_bytes(MD_CTX* ctx, MD_BLOCKTYPE type, unsigned start,
+                        unsigned data, unsigned flags)
+{
+    MD_BLOCK* block;
+    int ret = 0;
+
+    MD_CHECK(md_end_current_block(ctx));
+
+    block = (MD_BLOCK*) md_push_block_bytes(ctx, sizeof(MD_BLOCK));
+    if(block == NULL)
+        return -1;
+
+    block->type = type;
+    block->flags = flags;
+    block->data = data;
+    block->n_lines = start;
+
+abort:
+    return ret;
+}
+
+
+
+/***********************
+ ***  Line Analysis  ***
+ ***********************/
+
+static int
+md_is_hr_line(MD_CTX* ctx, OFF beg, OFF* p_end, OFF* p_killer)
+{
+    OFF off = beg + 1;
+    int n = 1;
+
+    while(off < ctx->size  &&  (CH(off) == CH(beg) || CH(off) == _T(' ') || CH(off) == _T('\t'))) {
+        if(CH(off) == CH(beg))
+            n++;
+        off++;
+    }
+
+    if(n < 3) {
+        *p_killer = off;
+        return FALSE;
+    }
+
+    /* Nothing else can be present on the line. */
+    if(off < ctx->size  &&  !ISNEWLINE(off)) {
+        *p_killer = off;
+        return FALSE;
+    }
+
+    *p_end = off;
+    return TRUE;
+}
+
+static int
+md_is_atxheader_line(MD_CTX* ctx, OFF beg, OFF* p_beg, OFF* p_end, unsigned* p_level)
+{
+    int n;
+    OFF off = beg + 1;
+
+    while(off < ctx->size  &&  CH(off) == _T('#')  &&  off - beg < 7)
+        off++;
+    n = off - beg;
+
+    if(n > 6)
+        return FALSE;
+    *p_level = n;
+
+    if(!(ctx->parser.flags & MD_FLAG_PERMISSIVEATXHEADERS)  &&  off < ctx->size  &&
+       CH(off) != _T(' ')  &&  CH(off) != _T('\t')  &&  !ISNEWLINE(off))
+        return FALSE;
+
+    while(off < ctx->size  &&  CH(off) == _T(' '))
+        off++;
+    *p_beg = off;
+    *p_end = off;
+    return TRUE;
+}
+
+static int
+md_is_setext_underline(MD_CTX* ctx, OFF beg, OFF* p_end, unsigned* p_level)
+{
+    OFF off = beg + 1;
+
+    while(off < ctx->size  &&  CH(off) == CH(beg))
+        off++;
+
+    /* Optionally, space(s) can follow. */
+    while(off < ctx->size  &&  CH(off) == _T(' '))
+        off++;
+
+    /* But nothing more is allowed on the line. */
+    if(off < ctx->size  &&  !ISNEWLINE(off))
+        return FALSE;
+
+    *p_level = (CH(beg) == _T('=') ? 1 : 2);
+    *p_end = off;
+    return TRUE;
+}
+
+static int
+md_is_table_underline(MD_CTX* ctx, OFF beg, OFF* p_end, unsigned* p_col_count)
+{
+    OFF off = beg;
+    int found_pipe = FALSE;
+    unsigned col_count = 0;
+
+    if(off < ctx->size  &&  CH(off) == _T('|')) {
+        found_pipe = TRUE;
+        off++;
+        while(off < ctx->size  &&  ISWHITESPACE(off))
+            off++;
+    }
+
+    while(1) {
+        OFF cell_beg;
+        int delimited = FALSE;
+
+        /* Cell underline ("-----", ":----", "----:" or ":----:") */
+        cell_beg = off;
+        if(off < ctx->size  &&  CH(off) == _T(':'))
+            off++;
+        while(off < ctx->size  &&  CH(off) == _T('-'))
+            off++;
+        if(off < ctx->size  &&  CH(off) == _T(':'))
+            off++;
+        if(off - cell_beg < 3)
+            return FALSE;
+
+        col_count++;
+
+        /* Pipe delimiter (optional at the end of line). */
+        while(off < ctx->size  &&  ISWHITESPACE(off))
+            off++;
+        if(off < ctx->size  &&  CH(off) == _T('|')) {
+            delimited = TRUE;
+            found_pipe =  TRUE;
+            off++;
+            while(off < ctx->size  &&  ISWHITESPACE(off))
+                off++;
+        }
+
+        /* Success, if we reach end of line. */
+        if(off >= ctx->size  ||  ISNEWLINE(off))
+            break;
+
+        if(!delimited)
+            return FALSE;
+    }
+
+    if(!found_pipe)
+        return FALSE;
+
+    *p_end = off;
+    *p_col_count = col_count;
+    return TRUE;
+}
+
+static int
+md_is_opening_code_fence(MD_CTX* ctx, OFF beg, OFF* p_end)
+{
+    OFF off = beg;
+
+    while(off < ctx->size && CH(off) == CH(beg))
+        off++;
+
+    /* Fence must have at least three characters. */
+    if(off - beg < 3)
+        return FALSE;
+
+    ctx->code_fence_length = off - beg;
+
+    /* Optionally, space(s) can follow. */
+    while(off < ctx->size  &&  CH(off) == _T(' '))
+        off++;
+
+    /* Optionally, an info string can follow. */
+    while(off < ctx->size  &&  !ISNEWLINE(off)) {
+        /* Backtick-based fence must not contain '`' in the info string. */
+        if(CH(beg) == _T('`')  &&  CH(off) == _T('`'))
+            return FALSE;
+        off++;
+    }
+
+    *p_end = off;
+    return TRUE;
+}
+
+static int
+md_is_closing_code_fence(MD_CTX* ctx, CHAR ch, OFF beg, OFF* p_end)
+{
+    OFF off = beg;
+    int ret = FALSE;
+
+    /* Closing fence must have at least the same length and use same char as
+     * opening one. */
+    while(off < ctx->size  &&  CH(off) == ch)
+        off++;
+    if(off - beg < ctx->code_fence_length)
+        goto out;
+
+    /* Optionally, space(s) can follow */
+    while(off < ctx->size  &&  CH(off) == _T(' '))
+        off++;
+
+    /* But nothing more is allowed on the line. */
+    if(off < ctx->size  &&  !ISNEWLINE(off))
+        goto out;
+
+    ret = TRUE;
+
+out:
+    /* Note we set *p_end even on failure: If we are not closing fence, caller
+     * would eat the line anyway without any parsing. */
+    *p_end = off;
+    return ret;
+}
+
+/* Returns type of the raw HTML block, or FALSE if it is not HTML block.
+ * (Refer to CommonMark specification for details about the types.)
+ */
+static int
+md_is_html_block_start_condition(MD_CTX* ctx, OFF beg)
+{
+    typedef struct TAG_tag TAG;
+    struct TAG_tag {
+        const CHAR* name;
+        unsigned len    : 8;
+    };
+
+    /* Type 6 is started by a long list of allowed tags. We use two-level
+     * tree to speed-up the search. */
+#ifdef X
+    #undef X
+#endif
+#define X(name)     { _T(name), sizeof(name)-1 }
+#define Xend        { NULL, 0 }
+    static const TAG t1[] = { X("script"), X("pre"), X("style"), Xend };
+
+    static const TAG a6[] = { X("address"), X("article"), X("aside"), Xend };
+    static const TAG b6[] = { X("base"), X("basefont"), X("blockquote"), X("body"), Xend };
+    static const TAG c6[] = { X("caption"), X("center"), X("col"), X("colgroup"), Xend };
+    static const TAG d6[] = { X("dd"), X("details"), X("dialog"), X("dir"),
+                              X("div"), X("dl"), X("dt"), Xend };
+    static const TAG f6[] = { X("fieldset"), X("figcaption"), X("figure"), X("footer"),
+                              X("form"), X("frame"), X("frameset"), Xend };
+    static const TAG h6[] = { X("h1"), X("head"), X("header"), X("hr"), X("html"), Xend };
+    static const TAG i6[] = { X("iframe"), Xend };
+    static const TAG l6[] = { X("legend"), X("li"), X("link"), Xend };
+    static const TAG m6[] = { X("main"), X("menu"), X("menuitem"), Xend };
+    static const TAG n6[] = { X("nav"), X("noframes"), Xend };
+    static const TAG o6[] = { X("ol"), X("optgroup"), X("option"), Xend };
+    static const TAG p6[] = { X("p"), X("param"), Xend };
+    static const TAG s6[] = { X("section"), X("source"), X("summary"), Xend };
+    static const TAG t6[] = { X("table"), X("tbody"), X("td"), X("tfoot"), X("th"),
+                              X("thead"), X("title"), X("tr"), X("track"), Xend };
+    static const TAG u6[] = { X("ul"), Xend };
+    static const TAG xx[] = { Xend };
+#undef X
+
+    static const TAG* map6[26] = {
+        a6, b6, c6, d6, xx, f6, xx, h6, i6, xx, xx, l6, m6,
+        n6, o6, p6, xx, xx, s6, t6, u6, xx, xx, xx, xx, xx
+    };
+    OFF off = beg + 1;
+    int i;
+
+    /* Check for type 1: <script, <pre, or <style */
+    for(i = 0; t1[i].name != NULL; i++) {
+        if(off + t1[i].len <= ctx->size) {
+            if(md_ascii_case_eq(STR(off), t1[i].name, t1[i].len))
+                return 1;
+        }
+    }
+
+    /* Check for type 2: <!-- */
+    if(off + 3 < ctx->size  &&  CH(off) == _T('!')  &&  CH(off+1) == _T('-')  &&  CH(off+2) == _T('-'))
+        return 2;
+
+    /* Check for type 3: <? */
+    if(off < ctx->size  &&  CH(off) == _T('?'))
+        return 3;
+
+    /* Check for type 4 or 5: <! */
+    if(off < ctx->size  &&  CH(off) == _T('!')) {
+        /* Check for type 4: <! followed by uppercase letter. */
+        if(off + 1 < ctx->size  &&  ISUPPER(off+1))
+            return 4;
+
+        /* Check for type 5: <![CDATA[ */
+        if(off + 8 < ctx->size) {
+            if(md_ascii_eq(STR(off), _T("![CDATA["), 8 * sizeof(CHAR)))
+                return 5;
+        }
+    }
+
+    /* Check for type 6: Many possible starting tags listed above. */
+    if(off + 1 < ctx->size  &&  (ISALPHA(off) || (CH(off) == _T('/') && ISALPHA(off+1)))) {
+        int slot;
+        const TAG* tags;
+
+        if(CH(off) == _T('/'))
+            off++;
+
+        slot = (ISUPPER(off) ? CH(off) - 'A' : CH(off) - 'a');
+        tags = map6[slot];
+
+        for(i = 0; tags[i].name != NULL; i++) {
+            if(off + tags[i].len <= ctx->size) {
+                if(md_ascii_case_eq(STR(off), tags[i].name, tags[i].len)) {
+                    OFF tmp = off + tags[i].len;
+                    if(tmp >= ctx->size)
+                        return 6;
+                    if(ISBLANK(tmp) || ISNEWLINE(tmp) || CH(tmp) == _T('>'))
+                        return 6;
+                    if(tmp+1 < ctx->size && CH(tmp) == _T('/') && CH(tmp+1) == _T('>'))
+                        return 6;
+                    break;
+                }
+            }
+        }
+    }
+
+    /* Check for type 7: any COMPLETE other opening or closing tag. */
+    if(off + 1 < ctx->size) {
+        OFF end;
+
+        if(md_is_html_tag(ctx, NULL, 0, beg, ctx->size, &end)) {
+            /* Only optional whitespace and new line may follow. */
+            while(end < ctx->size  &&  ISWHITESPACE(end))
+                end++;
+            if(end >= ctx->size  ||  ISNEWLINE(end))
+                return 7;
+        }
+    }
+
+    return FALSE;
+}
+
+/* Case sensitive check whether there is a substring 'what' between 'beg'
+ * and end of line. */
+static int
+md_line_contains(MD_CTX* ctx, OFF beg, const CHAR* what, SZ what_len, OFF* p_end)
+{
+    OFF i;
+    for(i = beg; i + what_len < ctx->size; i++) {
+        if(ISNEWLINE(i))
+            break;
+        if(memcmp(STR(i), what, what_len * sizeof(CHAR)) == 0) {
+            *p_end = i + what_len;
+            return TRUE;
+        }
+    }
+
+    *p_end = i;
+    return FALSE;
+}
+
+/* Returns type of HTML block end condition or FALSE if not an end condition.
+ *
+ * Note it fills p_end even when it is not end condition as the caller
+ * does not need to analyze contents of a raw HTML block.
+ */
+static int
+md_is_html_block_end_condition(MD_CTX* ctx, OFF beg, OFF* p_end)
+{
+    switch(ctx->html_block_type) {
+        case 1:
+        {
+            OFF off = beg;
+
+            while(off < ctx->size  &&  !ISNEWLINE(off)) {
+                if(CH(off) == _T('<')) {
+                    if(md_ascii_case_eq(STR(off), _T("</script>"), 9)) {
+                        *p_end = off + 9;
+                        return TRUE;
+                    }
+
+                    if(md_ascii_case_eq(STR(off), _T("</style>"), 8)) {
+                        *p_end = off + 8;
+                        return TRUE;
+                    }
+
+                    if(md_ascii_case_eq(STR(off), _T("</pre>"), 6)) {
+                        *p_end = off + 6;
+                        return TRUE;
+                    }
+                }
+
+                off++;
+            }
+            *p_end = off;
+            return FALSE;
+        }
+
+        case 2:
+            return (md_line_contains(ctx, beg, _T("-->"), 3, p_end) ? 2 : FALSE);
+
+        case 3:
+            return (md_line_contains(ctx, beg, _T("?>"), 2, p_end) ? 3 : FALSE);
+
+        case 4:
+            return (md_line_contains(ctx, beg, _T(">"), 1, p_end) ? 4 : FALSE);
+
+        case 5:
+            return (md_line_contains(ctx, beg, _T("]]>"), 3, p_end) ? 5 : FALSE);
+
+        case 6:     /* Pass through */
+        case 7:
+            *p_end = beg;
+            return (ISNEWLINE(beg) ? ctx->html_block_type : FALSE);
+
+        default:
+            MD_UNREACHABLE();
+    }
+    return FALSE;
+}
+
+
+static int
+md_is_container_compatible(const MD_CONTAINER* pivot, const MD_CONTAINER* container)
+{
+    /* Block quote has no "items" like lists. */
+    if(container->ch == _T('>'))
+        return FALSE;
+
+    if(container->ch != pivot->ch)
+        return FALSE;
+    if(container->mark_indent > pivot->contents_indent)
+        return FALSE;
+
+    return TRUE;
+}
+
+static int
+md_push_container(MD_CTX* ctx, const MD_CONTAINER* container)
+{
+    if(ctx->n_containers >= ctx->alloc_containers) {
+        MD_CONTAINER* new_containers;
+
+        ctx->alloc_containers = (ctx->alloc_containers > 0 ? ctx->alloc_containers * 2 : 16);
+        new_containers = realloc(ctx->containers, ctx->alloc_containers * sizeof(MD_CONTAINER));
+        if(new_containers == NULL) {
+            MD_LOG("realloc() failed.");
+            return -1;
+        }
+
+        ctx->containers = new_containers;
+    }
+
+    memcpy(&ctx->containers[ctx->n_containers++], container, sizeof(MD_CONTAINER));
+    return 0;
+}
+
+static int
+md_enter_child_containers(MD_CTX* ctx, int n_children, unsigned data)
+{
+    int i;
+    int ret = 0;
+
+    for(i = ctx->n_containers - n_children; i < ctx->n_containers; i++) {
+        MD_CONTAINER* c = &ctx->containers[i];
+        int is_ordered_list = FALSE;
+
+        switch(c->ch) {
+            case _T(')'):
+            case _T('.'):
+                is_ordered_list = TRUE;
+                /* Pass through */
+
+            case _T('-'):
+            case _T('+'):
+            case _T('*'):
+                /* Remember offset in ctx->block_bytes so we can revisit the
+                 * block if we detect it is a loose list. */
+                md_end_current_block(ctx);
+                c->block_byte_off = ctx->n_block_bytes;
+
+                MD_CHECK(md_push_container_bytes(ctx,
+                                (is_ordered_list ? MD_BLOCK_OL : MD_BLOCK_UL),
+                                c->start, data, MD_BLOCK_CONTAINER_OPENER));
+                MD_CHECK(md_push_container_bytes(ctx, MD_BLOCK_LI,
+                                c->task_mark_off,
+                                (c->is_task ? CH(c->task_mark_off) : 0),
+                                MD_BLOCK_CONTAINER_OPENER));
+                break;
+
+            case _T('>'):
+                MD_CHECK(md_push_container_bytes(ctx, MD_BLOCK_QUOTE, 0, 0, MD_BLOCK_CONTAINER_OPENER));
+                break;
+
+            default:
+                MD_UNREACHABLE();
+                break;
+        }
+    }
+
+abort:
+    return ret;
+}
+
+static int
+md_leave_child_containers(MD_CTX* ctx, int n_keep)
+{
+    int ret = 0;
+
+    while(ctx->n_containers > n_keep) {
+        MD_CONTAINER* c = &ctx->containers[ctx->n_containers-1];
+        int is_ordered_list = FALSE;
+
+        switch(c->ch) {
+            case _T(')'):
+            case _T('.'):
+                is_ordered_list = TRUE;
+                /* Pass through */
+
+            case _T('-'):
+            case _T('+'):
+            case _T('*'):
+                MD_CHECK(md_push_container_bytes(ctx, MD_BLOCK_LI,
+                                c->task_mark_off, (c->is_task ? CH(c->task_mark_off) : 0),
+                                MD_BLOCK_CONTAINER_CLOSER));
+                MD_CHECK(md_push_container_bytes(ctx,
+                                (is_ordered_list ? MD_BLOCK_OL : MD_BLOCK_UL), 0,
+                                c->ch, MD_BLOCK_CONTAINER_CLOSER));
+                break;
+
+            case _T('>'):
+                MD_CHECK(md_push_container_bytes(ctx, MD_BLOCK_QUOTE, 0,
+                                0, MD_BLOCK_CONTAINER_CLOSER));
+                break;
+
+            default:
+                MD_UNREACHABLE();
+                break;
+        }
+
+        ctx->n_containers--;
+    }
+
+abort:
+    return ret;
+}
+
+static int
+md_is_container_mark(MD_CTX* ctx, unsigned indent, OFF beg, OFF* p_end, MD_CONTAINER* p_container)
+{
+    OFF off = beg;
+    OFF max_end;
+
+    if(indent >= ctx->code_indent_offset)
+        return FALSE;
+
+    /* Check for block quote mark. */
+    if(off < ctx->size  &&  CH(off) == _T('>')) {
+        off++;
+        p_container->ch = _T('>');
+        p_container->is_loose = FALSE;
+        p_container->is_task = FALSE;
+        p_container->mark_indent = indent;
+        p_container->contents_indent = indent + 1;
+        *p_end = off;
+        return TRUE;
+    }
+
+    /* Check for list item bullet mark. */
+    if(off+1 < ctx->size  &&  ISANYOF(off, _T("-+*"))  &&  (ISBLANK(off+1) || ISNEWLINE(off+1))) {
+        p_container->ch = CH(off);
+        p_container->is_loose = FALSE;
+        p_container->is_task = FALSE;
+        p_container->mark_indent = indent;
+        p_container->contents_indent = indent + 1;
+        *p_end = off + 1;
+        return TRUE;
+    }
+
+    /* Check for ordered list item marks. */
+    max_end = off + 9;
+    if(max_end > ctx->size)
+        max_end = ctx->size;
+    p_container->start = 0;
+    while(off < max_end  &&  ISDIGIT(off)) {
+        p_container->start = p_container->start * 10 + CH(off) - _T('0');
+        off++;
+    }
+    if(off > beg  &&  off+1 < ctx->size  &&
+       (CH(off) == _T('.') || CH(off) == _T(')'))  &&
+       (ISBLANK(off+1) || ISNEWLINE(off+1)))
+    {
+        p_container->ch = CH(off);
+        p_container->is_loose = FALSE;
+        p_container->is_task = FALSE;
+        p_container->mark_indent = indent;
+        p_container->contents_indent = indent + off - beg + 1;
+        *p_end = off + 1;
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+static unsigned
+md_line_indentation(MD_CTX* ctx, unsigned total_indent, OFF beg, OFF* p_end)
+{
+    OFF off = beg;
+    unsigned indent = total_indent;
+
+    while(off < ctx->size  &&  ISBLANK(off)) {
+        if(CH(off) == _T('\t'))
+            indent = (indent + 4) & ~3;
+        else
+            indent++;
+        off++;
+    }
+
+    *p_end = off;
+    return indent - total_indent;
+}
+
+static const MD_LINE_ANALYSIS md_dummy_blank_line = { MD_LINE_BLANK, 0 };
+
+/* Analyze type of the line and find some its properties. This serves as a
+ * main input for determining type and boundaries of a block. */
+static int
+md_analyze_line(MD_CTX* ctx, OFF beg, OFF* p_end,
+                const MD_LINE_ANALYSIS* pivot_line, MD_LINE_ANALYSIS* line)
+{
+    unsigned total_indent = 0;
+    int n_parents = 0;
+    int n_brothers = 0;
+    int n_children = 0;
+    MD_CONTAINER container = { 0 };
+    int prev_line_has_list_loosening_effect = ctx->last_line_has_list_loosening_effect;
+    OFF off = beg;
+    OFF hr_killer = 0;
+    int ret = 0;
+
+    line->indent = md_line_indentation(ctx, total_indent, off, &off);
+    total_indent += line->indent;
+    line->beg = off;
+
+    /* Given the indentation and block quote marks '>', determine how many of
+     * the current containers are our parents. */
+    while(n_parents < ctx->n_containers) {
+        MD_CONTAINER* c = &ctx->containers[n_parents];
+
+        if(c->ch == _T('>')  &&  line->indent < ctx->code_indent_offset  &&
+            off < ctx->size  &&  CH(off) == _T('>'))
+        {
+            /* Block quote mark. */
+            off++;
+            total_indent++;
+            line->indent = md_line_indentation(ctx, total_indent, off, &off);
+            total_indent += line->indent;
+
+            /* The optional 1st space after '>' is part of the block quote mark. */
+            if(line->indent > 0)
+                line->indent--;
+
+            line->beg = off;
+
+        } else if(c->ch != _T('>')  &&  line->indent >= c->contents_indent) {
+            /* List. */
+            line->indent -= c->contents_indent;
+        } else {
+            break;
+        }
+
+        n_parents++;
+    }
+
+    if(off >= ctx->size  ||  ISNEWLINE(off)) {
+        /* Blank line does not need any real indentation to be nested inside
+         * a list. */
+        if(n_brothers + n_children == 0) {
+            while(n_parents < ctx->n_containers  &&  ctx->containers[n_parents].ch != _T('>'))
+                n_parents++;
+        }
+    }
+
+    while(TRUE) {
+        /* Check whether we are fenced code continuation. */
+        if(pivot_line->type == MD_LINE_FENCEDCODE) {
+            line->beg = off;
+
+            /* We are another MD_LINE_FENCEDCODE unless we are closing fence
+             * which we transform into MD_LINE_BLANK. */
+            if(line->indent < ctx->code_indent_offset) {
+                if(md_is_closing_code_fence(ctx, CH(pivot_line->beg), off, &off)) {
+                    line->type = MD_LINE_BLANK;
+                    ctx->last_line_has_list_loosening_effect = FALSE;
+                    break;
+                }
+            }
+
+            /* Change indentation accordingly to the initial code fence. */
+            if(n_parents == ctx->n_containers) {
+                if(line->indent > pivot_line->indent)
+                    line->indent -= pivot_line->indent;
+                else
+                    line->indent = 0;
+
+                line->type = MD_LINE_FENCEDCODE;
+                break;
+            }
+        }
+
+        /* Check whether we are HTML block continuation. */
+        if(pivot_line->type == MD_LINE_HTML  &&  ctx->html_block_type > 0) {
+            int html_block_type;
+
+            html_block_type = md_is_html_block_end_condition(ctx, off, &off);
+            if(html_block_type > 0) {
+                MD_ASSERT(html_block_type == ctx->html_block_type);
+
+                /* Make sure this is the last line of the block. */
+                ctx->html_block_type = 0;
+
+                /* Some end conditions serve as blank lines at the same time. */
+                if(html_block_type == 6 || html_block_type == 7) {
+                    line->type = MD_LINE_BLANK;
+                    line->indent = 0;
+                    break;
+                }
+            }
+
+            if(n_parents == ctx->n_containers) {
+                line->type = MD_LINE_HTML;
+                break;
+            }
+        }
+
+        /* Check for blank line. */
+        if(off >= ctx->size  ||  ISNEWLINE(off)) {
+            if(pivot_line->type == MD_LINE_INDENTEDCODE  &&  n_parents == ctx->n_containers) {
+                line->type = MD_LINE_INDENTEDCODE;
+                if(line->indent > ctx->code_indent_offset)
+                    line->indent -= ctx->code_indent_offset;
+                else
+                    line->indent = 0;
+                ctx->last_line_has_list_loosening_effect = FALSE;
+            } else {
+                line->type = MD_LINE_BLANK;
+                ctx->last_line_has_list_loosening_effect = (n_parents > 0  &&
+                        n_brothers + n_children == 0  &&
+                        ctx->containers[n_parents-1].ch != _T('>'));
+
+    #if 1
+                /* See https://github.com/mity/md4c/issues/6
+                 *
+                 * This ugly checking tests we are in (yet empty) list item but not
+                 * its very first line (with the list item mark).
+                 *
+                 * If we are such blank line, then any following non-blank line
+                 * which would be part of this list item actually ends the list
+                 * because "a list item can begin with at most one blank line."
+                 */
+                if(n_parents > 0  &&  ctx->containers[n_parents-1].ch != _T('>')  &&
+                   n_brothers + n_children == 0  &&  ctx->current_block == NULL  &&
+                   ctx->n_block_bytes > (int) sizeof(MD_BLOCK))
+                {
+                    MD_BLOCK* top_block = (MD_BLOCK*) ((char*)ctx->block_bytes + ctx->n_block_bytes - sizeof(MD_BLOCK));
+                    if(top_block->type == MD_BLOCK_LI)
+                        ctx->last_list_item_starts_with_two_blank_lines = TRUE;
+                }
+    #endif
+            }
+            break;
+        } else {
+    #if 1
+            /* This is 2nd half of the hack. If the flag is set (that is there
+             * were 2nd blank line at the start of the list item) and we would also
+             * belonging to such list item, then interrupt the list. */
+            ctx->last_line_has_list_loosening_effect = FALSE;
+            if(ctx->last_list_item_starts_with_two_blank_lines) {
+                if(n_parents > 0  &&  ctx->containers[n_parents-1].ch != _T('>')  &&
+                   n_brothers + n_children == 0  &&  ctx->current_block == NULL  &&
+                   ctx->n_block_bytes > (int) sizeof(MD_BLOCK))
+                {
+                    MD_BLOCK* top_block = (MD_BLOCK*) ((char*)ctx->block_bytes + ctx->n_block_bytes - sizeof(MD_BLOCK));
+                    if(top_block->type == MD_BLOCK_LI)
+                        n_parents--;
+                }
+
+                ctx->last_list_item_starts_with_two_blank_lines = FALSE;
+            }
+    #endif
+        }
+
+        /* Check whether we are Setext underline. */
+        if(line->indent < ctx->code_indent_offset  &&  pivot_line->type == MD_LINE_TEXT
+            &&  (CH(off) == _T('=') || CH(off) == _T('-'))
+            &&  (n_parents == ctx->n_containers))
+        {
+            unsigned level;
+
+            if(md_is_setext_underline(ctx, off, &off, &level)) {
+                line->type = MD_LINE_SETEXTUNDERLINE;
+                line->data = level;
+                break;
+            }
+        }
+
+        /* Check for thematic break line. */
+        if(line->indent < ctx->code_indent_offset  &&  ISANYOF(off, _T("-_*"))  &&  off >= hr_killer) {
+            if(md_is_hr_line(ctx, off, &off, &hr_killer)) {
+                line->type = MD_LINE_HR;
+                break;
+            }
+        }
+
+        /* Check for "brother" container. I.e. whether we are another list item
+         * in already started list. */
+        if(n_parents < ctx->n_containers  &&  n_brothers + n_children == 0) {
+            OFF tmp;
+
+            if(md_is_container_mark(ctx, line->indent, off, &tmp, &container)  &&
+               md_is_container_compatible(&ctx->containers[n_parents], &container))
+            {
+                pivot_line = &md_dummy_blank_line;
+
+                off = tmp;
+
+                total_indent += container.contents_indent - container.mark_indent;
+                line->indent = md_line_indentation(ctx, total_indent, off, &off);
+                total_indent += line->indent;
+                line->beg = off;
+
+                /* Some of the following whitespace actually still belongs to the mark. */
+                if(off >= ctx->size || ISNEWLINE(off)) {
+                    container.contents_indent++;
+                } else if(line->indent <= ctx->code_indent_offset) {
+                    container.contents_indent += line->indent;
+                    line->indent = 0;
+                } else {
+                    container.contents_indent += 1;
+                    line->indent--;
+                }
+
+                ctx->containers[n_parents].mark_indent = container.mark_indent;
+                ctx->containers[n_parents].contents_indent = container.contents_indent;
+
+                n_brothers++;
+                continue;
+            }
+        }
+
+        /* Check for indented code.
+         * Note indented code block cannot interrupt a paragraph. */
+        if(line->indent >= ctx->code_indent_offset  &&
+            (pivot_line->type == MD_LINE_BLANK || pivot_line->type == MD_LINE_INDENTEDCODE))
+        {
+            line->type = MD_LINE_INDENTEDCODE;
+            MD_ASSERT(line->indent >= ctx->code_indent_offset);
+            line->indent -= ctx->code_indent_offset;
+            line->data = 0;
+            break;
+        }
+
+        /* Check for start of a new container block. */
+        if(line->indent < ctx->code_indent_offset  &&
+           md_is_container_mark(ctx, line->indent, off, &off, &container))
+        {
+            if(pivot_line->type == MD_LINE_TEXT  &&  n_parents == ctx->n_containers  &&
+                        (off >= ctx->size || ISNEWLINE(off))  &&  container.ch != _T('>'))
+            {
+                /* Noop. List mark followed by a blank line cannot interrupt a paragraph. */
+            } else if(pivot_line->type == MD_LINE_TEXT  &&  n_parents == ctx->n_containers  &&
+                        (container.ch == _T('.') || container.ch == _T(')'))  &&  container.start != 1)
+            {
+                /* Noop. Ordered list cannot interrupt a paragraph unless the start index is 1. */
+            } else {
+                total_indent += container.contents_indent - container.mark_indent;
+                line->indent = md_line_indentation(ctx, total_indent, off, &off);
+                total_indent += line->indent;
+
+                line->beg = off;
+                line->data = container.ch;
+
+                /* Some of the following whitespace actually still belongs to the mark. */
+                if(off >= ctx->size || ISNEWLINE(off)) {
+                    container.contents_indent++;
+                } else if(line->indent <= ctx->code_indent_offset) {
+                    container.contents_indent += line->indent;
+                    line->indent = 0;
+                } else {
+                    container.contents_indent += 1;
+                    line->indent--;
+                }
+
+                if(n_brothers + n_children == 0)
+                    pivot_line = &md_dummy_blank_line;
+
+                if(n_children == 0)
+                    MD_CHECK(md_leave_child_containers(ctx, n_parents + n_brothers));
+
+                n_children++;
+                MD_CHECK(md_push_container(ctx, &container));
+                continue;
+            }
+        }
+
+        /* Check whether we are table continuation. */
+        if(pivot_line->type == MD_LINE_TABLE  &&  n_parents == ctx->n_containers) {
+            line->type = MD_LINE_TABLE;
+            break;
+        }
+
+        /* Check for ATX header. */
+        if(line->indent < ctx->code_indent_offset  &&  CH(off) == _T('#')) {
+            unsigned level;
+
+            if(md_is_atxheader_line(ctx, off, &line->beg, &off, &level)) {
+                line->type = MD_LINE_ATXHEADER;
+                line->data = level;
+                break;
+            }
+        }
+
+        /* Check whether we are starting code fence. */
+        if(CH(off) == _T('`') || CH(off) == _T('~')) {
+            if(md_is_opening_code_fence(ctx, off, &off)) {
+                line->type = MD_LINE_FENCEDCODE;
+                line->data = 1;
+                break;
+            }
+        }
+
+        /* Check for start of raw HTML block. */
+        if(CH(off) == _T('<')  &&  !(ctx->parser.flags & MD_FLAG_NOHTMLBLOCKS))
+        {
+            ctx->html_block_type = md_is_html_block_start_condition(ctx, off);
+
+            /* HTML block type 7 cannot interrupt paragraph. */
+            if(ctx->html_block_type == 7  &&  pivot_line->type == MD_LINE_TEXT)
+                ctx->html_block_type = 0;
+
+            if(ctx->html_block_type > 0) {
+                /* The line itself also may immediately close the block. */
+                if(md_is_html_block_end_condition(ctx, off, &off) == ctx->html_block_type) {
+                    /* Make sure this is the last line of the block. */
+                    ctx->html_block_type = 0;
+                }
+
+                line->type = MD_LINE_HTML;
+                break;
+            }
+        }
+
+        /* Check for table underline. */
+        if((ctx->parser.flags & MD_FLAG_TABLES)  &&  pivot_line->type == MD_LINE_TEXT  &&
+           (CH(off) == _T('|') || CH(off) == _T('-') || CH(off) == _T(':'))  &&
+           n_parents == ctx->n_containers)
+        {
+            unsigned col_count;
+
+            if(ctx->current_block != NULL  &&  ctx->current_block->n_lines == 1  &&
+                md_is_table_underline(ctx, off, &off, &col_count))
+            {
+                line->data = col_count;
+                line->type = MD_LINE_TABLEUNDERLINE;
+                break;
+            }
+        }
+
+        /* By default, we are normal text line. */
+        line->type = MD_LINE_TEXT;
+        if(pivot_line->type == MD_LINE_TEXT  &&  n_brothers + n_children == 0) {
+            /* Lazy continuation. */
+            n_parents = ctx->n_containers;
+        }
+
+        /* Check for task mark. */
+        if((ctx->parser.flags & MD_FLAG_TASKLISTS)  &&  n_brothers + n_children > 0  &&
+           ISANYOF_(ctx->containers[ctx->n_containers-1].ch, _T("-+*.)")))
+        {
+            OFF tmp = off;
+
+            while(tmp < ctx->size  &&  tmp < off + 3  &&  ISBLANK(tmp))
+                tmp++;
+            if(tmp + 2 < ctx->size  &&  CH(tmp) == _T('[')  &&
+               ISANYOF(tmp+1, _T("xX "))  &&  CH(tmp+2) == _T(']')  &&
+               (tmp + 3 == ctx->size  ||  ISBLANK(tmp+3)  ||  ISNEWLINE(tmp+3)))
+            {
+                MD_CONTAINER* task_container = (n_children > 0 ? &ctx->containers[ctx->n_containers-1] : &container);
+                task_container->is_task = TRUE;
+                task_container->task_mark_off = tmp + 1;
+                off = tmp + 3;
+                while(ISWHITESPACE(off))
+                    off++;
+                line->beg = off;
+            }
+        }
+
+        break;
+    }
+
+    line->total_indent = total_indent;
+
+    /* Scan for end of the line.
+     *
+     * Note this is quite a bottleneck of the parsing as we here iterate almost
+     * over compete document.
+     */
+#if defined __linux__ && !defined MD4C_USE_UTF16
+    /* Recent glibc versions have superbly optimized strcspn(), even using
+     * vectorization if available. */
+    if(ctx->doc_ends_with_newline  &&  off < ctx->size) {
+        while(TRUE) {
+            off += (OFF) strcspn(STR(off), "\r\n");
+
+            /* strcspn() can stop on zero terminator; but that can appear
+             * anywhere in the Markfown input... */
+            if(CH(off) == _T('\0'))
+                off++;
+            else
+                break;
+        }
+    } else
+#endif
+    {
+        /* Optimization: Use some loop unrolling. */
+        while(off + 3 < ctx->size  &&  !ISNEWLINE(off+0)  &&  !ISNEWLINE(off+1)
+                                   &&  !ISNEWLINE(off+2)  &&  !ISNEWLINE(off+3))
+            off += 4;
+        while(off < ctx->size  &&  !ISNEWLINE(off))
+            off++;
+    }
+
+    /* Set end of the line. */
+    line->end = off;
+
+    /* But for ATX header, we should exclude the optional trailing mark. */
+    if(line->type == MD_LINE_ATXHEADER) {
+        OFF tmp = line->end;
+        while(tmp > line->beg && CH(tmp-1) == _T(' '))
+            tmp--;
+        while(tmp > line->beg && CH(tmp-1) == _T('#'))
+            tmp--;
+        if(tmp == line->beg || CH(tmp-1) == _T(' ') || (ctx->parser.flags & MD_FLAG_PERMISSIVEATXHEADERS))
+            line->end = tmp;
+    }
+
+    /* Trim trailing spaces. */
+    if(line->type != MD_LINE_INDENTEDCODE  &&  line->type != MD_LINE_FENCEDCODE) {
+        while(line->end > line->beg && CH(line->end-1) == _T(' '))
+            line->end--;
+    }
+
+    /* Eat also the new line. */
+    if(off < ctx->size && CH(off) == _T('\r'))
+        off++;
+    if(off < ctx->size && CH(off) == _T('\n'))
+        off++;
+
+    *p_end = off;
+
+    /* If we belong to a list after seeing a blank line, the list is loose. */
+    if(prev_line_has_list_loosening_effect  &&  line->type != MD_LINE_BLANK  &&  n_parents + n_brothers > 0) {
+        MD_CONTAINER* c = &ctx->containers[n_parents + n_brothers - 1];
+        if(c->ch != _T('>')) {
+            MD_BLOCK* block = (MD_BLOCK*) (((char*)ctx->block_bytes) + c->block_byte_off);
+            block->flags |= MD_BLOCK_LOOSE_LIST;
+        }
+    }
+
+    /* Leave any containers we are not part of anymore. */
+    if(n_children == 0  &&  n_parents + n_brothers < ctx->n_containers)
+        MD_CHECK(md_leave_child_containers(ctx, n_parents + n_brothers));
+
+    /* Enter any container we found a mark for. */
+    if(n_brothers > 0) {
+        MD_ASSERT(n_brothers == 1);
+        MD_CHECK(md_push_container_bytes(ctx, MD_BLOCK_LI,
+                    ctx->containers[n_parents].task_mark_off,
+                    (ctx->containers[n_parents].is_task ? CH(ctx->containers[n_parents].task_mark_off) : 0),
+                    MD_BLOCK_CONTAINER_CLOSER));
+        MD_CHECK(md_push_container_bytes(ctx, MD_BLOCK_LI,
+                    container.task_mark_off,
+                    (container.is_task ? CH(container.task_mark_off) : 0),
+                    MD_BLOCK_CONTAINER_OPENER));
+        ctx->containers[n_parents].is_task = container.is_task;
+        ctx->containers[n_parents].task_mark_off = container.task_mark_off;
+    }
+
+    if(n_children > 0)
+        MD_CHECK(md_enter_child_containers(ctx, n_children, line->data));
+
+abort:
+    return ret;
+}
+
+static int
+md_process_line(MD_CTX* ctx, const MD_LINE_ANALYSIS** p_pivot_line, MD_LINE_ANALYSIS* line)
+{
+    const MD_LINE_ANALYSIS* pivot_line = *p_pivot_line;
+    int ret = 0;
+
+    /* Blank line ends current leaf block. */
+    if(line->type == MD_LINE_BLANK) {
+        MD_CHECK(md_end_current_block(ctx));
+        *p_pivot_line = &md_dummy_blank_line;
+        return 0;
+    }
+
+    /* Some line types form block on their own. */
+    if(line->type == MD_LINE_HR || line->type == MD_LINE_ATXHEADER) {
+        MD_CHECK(md_end_current_block(ctx));
+
+        /* Add our single-line block. */
+        MD_CHECK(md_start_new_block(ctx, line));
+        MD_CHECK(md_add_line_into_current_block(ctx, line));
+        MD_CHECK(md_end_current_block(ctx));
+        *p_pivot_line = &md_dummy_blank_line;
+        return 0;
+    }
+
+    /* MD_LINE_SETEXTUNDERLINE changes meaning of the current block and ends it. */
+    if(line->type == MD_LINE_SETEXTUNDERLINE) {
+        MD_ASSERT(ctx->current_block != NULL);
+        ctx->current_block->type = MD_BLOCK_H;
+        ctx->current_block->data = line->data;
+        ctx->current_block->flags |= MD_BLOCK_SETEXT_HEADER;
+        MD_CHECK(md_add_line_into_current_block(ctx, line));
+        MD_CHECK(md_end_current_block(ctx));
+        if(ctx->current_block == NULL) {
+            *p_pivot_line = &md_dummy_blank_line;
+        } else {
+            /* This happens if we have consumed all the body as link ref. defs.
+             * and downgraded the underline into start of a new paragraph block. */
+            line->type = MD_LINE_TEXT;
+            *p_pivot_line = line;
+        }
+        return 0;
+    }
+
+    /* MD_LINE_TABLEUNDERLINE changes meaning of the current block. */
+    if(line->type == MD_LINE_TABLEUNDERLINE) {
+        MD_ASSERT(ctx->current_block != NULL);
+        MD_ASSERT(ctx->current_block->n_lines == 1);
+        ctx->current_block->type = MD_BLOCK_TABLE;
+        ctx->current_block->data = line->data;
+        MD_ASSERT(pivot_line != &md_dummy_blank_line);
+        ((MD_LINE_ANALYSIS*)pivot_line)->type = MD_LINE_TABLE;
+        MD_CHECK(md_add_line_into_current_block(ctx, line));
+        return 0;
+    }
+
+    /* The current block also ends if the line has different type. */
+    if(line->type != pivot_line->type)
+        MD_CHECK(md_end_current_block(ctx));
+
+    /* The current line may start a new block. */
+    if(ctx->current_block == NULL) {
+        MD_CHECK(md_start_new_block(ctx, line));
+        *p_pivot_line = line;
+    }
+
+    /* In all other cases the line is just a continuation of the current block. */
+    MD_CHECK(md_add_line_into_current_block(ctx, line));
+
+abort:
+    return ret;
+}
+
+static int
+md_process_doc(MD_CTX *ctx)
+{
+    const MD_LINE_ANALYSIS* pivot_line = &md_dummy_blank_line;
+    MD_LINE_ANALYSIS line_buf[2];
+    MD_LINE_ANALYSIS* line = &line_buf[0];
+    OFF off = 0;
+    int ret = 0;
+
+    MD_ENTER_BLOCK(MD_BLOCK_DOC, NULL);
+
+    while(off < ctx->size) {
+        if(line == pivot_line)
+            line = (line == &line_buf[0] ? &line_buf[1] : &line_buf[0]);
+
+        MD_CHECK(md_analyze_line(ctx, off, &off, pivot_line, line));
+        MD_CHECK(md_process_line(ctx, &pivot_line, line));
+    }
+
+    md_end_current_block(ctx);
+
+    MD_CHECK(md_build_ref_def_hashtable(ctx));
+
+    /* Process all blocks. */
+    MD_CHECK(md_leave_child_containers(ctx, 0));
+    MD_CHECK(md_process_all_blocks(ctx));
+
+    MD_LEAVE_BLOCK(MD_BLOCK_DOC, NULL);
+
+abort:
+
+#if 0
+    /* Output some memory consumption statistics. */
+    {
+        char buffer[256];
+        sprintf(buffer, "Alloced %u bytes for block buffer.",
+                    (unsigned)(ctx->alloc_block_bytes));
+        MD_LOG(buffer);
+
+        sprintf(buffer, "Alloced %u bytes for containers buffer.",
+                    (unsigned)(ctx->alloc_containers * sizeof(MD_CONTAINER)));
+        MD_LOG(buffer);
+
+        sprintf(buffer, "Alloced %u bytes for marks buffer.",
+                    (unsigned)(ctx->alloc_marks * sizeof(MD_MARK)));
+        MD_LOG(buffer);
+
+        sprintf(buffer, "Alloced %u bytes for aux. buffer.",
+                    (unsigned)(ctx->alloc_buffer * sizeof(MD_CHAR)));
+        MD_LOG(buffer);
+    }
+#endif
+
+    return ret;
+}
+
+
+/********************
+ ***  Public API  ***
+ ********************/
+
+int
+md_parse(const MD_CHAR* text, MD_SIZE size, const MD_PARSER* parser, void* userdata)
+{
+    MD_CTX ctx;
+    int i;
+    int ret;
+
+    if(parser->abi_version != 0) {
+        #if WITH_PARSER_DEBUG_LOG
+        if(parser->debug_log != NULL)
+            parser->debug_log("Unsupported abi_version.", userdata);
+        #endif
+        return -1;
+    }
+
+    /* Setup context structure. */
+    memset(&ctx, 0, sizeof(MD_CTX));
+    ctx.text = text;
+    ctx.size = size;
+    memcpy(&ctx.parser, parser, sizeof(MD_PARSER));
+    ctx.userdata = userdata;
+    ctx.code_indent_offset = (ctx.parser.flags & MD_FLAG_NOINDENTEDCODEBLOCKS) ? (OFF)(-1) : 4;
+    md_build_mark_char_map(&ctx);
+    ctx.doc_ends_with_newline = (size > 0  &&  ISNEWLINE_(text[size-1]));
+
+    /* Reset all unresolved opener mark chains. */
+    for(i = 0; i < (int) SIZEOF_ARRAY(ctx.mark_chains); i++) {
+        ctx.mark_chains[i].head = -1;
+        ctx.mark_chains[i].tail = -1;
+    }
+    ctx.unresolved_link_head = -1;
+    ctx.unresolved_link_tail = -1;
+
+    /* All the work. */
+    ret = md_process_doc(&ctx);
+
+    /* Clean-up. */
+    md_free_ref_defs(&ctx);
+    md_free_ref_def_hashtable(&ctx);
+    free(ctx.buffer);
+    free(ctx.marks);
+    free(ctx.block_bytes);
+    free(ctx.containers);
+
+    return ret;
+}
diff --git a/src/md4c.h b/src/md4c.h
new file mode 100644
index 0000000..b2b6628
--- /dev/null
+++ b/src/md4c.h
@@ -0,0 +1,383 @@
+/*
+ * MD4C: Markdown parser for C
+ * (http://github.com/mity/md4c)
+ *
+ * Copyright (c) 2016-2019 Martin Mitas
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef MD4C_MARKDOWN_H
+#define MD4C_MARKDOWN_H
+
+#ifdef __cplusplus
+    extern "C" {
+#endif
+
+#if defined MD4C_USE_UTF16
+    /* Magic to support UTF-16. Not that in order to use it, you have to define
+     * the macro MD4C_USE_UTF16 both when building MD4C as well as when
+     * including this header in your code. */
+    #ifdef _WIN32
+        #include <windows.h>
+        typedef WCHAR       MD_CHAR;
+    #else
+        #error MD4C_USE_UTF16 is only supported on Windows.
+    #endif
+#else
+    typedef char            MD_CHAR;
+#endif
+
+typedef unsigned MD_SIZE;
+typedef unsigned MD_OFFSET;
+
+
+/* Block represents a part of document hierarchy structure like a paragraph
+ * or list item.
+ */
+typedef enum MD_BLOCKTYPE {
+    /* <body>...</body> */
+    MD_BLOCK_DOC = 0,
+
+    /* <blockquote>...</blockquote> */
+    MD_BLOCK_QUOTE,
+
+    /* <ul>...</ul>
+     * Detail: Structure MD_BLOCK_UL_DETAIL. */
+    MD_BLOCK_UL,
+
+    /* <ol>...</ol>
+     * Detail: Structure MD_BLOCK_OL_DETAIL. */
+    MD_BLOCK_OL,
+
+    /* <li>...</li>
+     * Detail: Structure MD_BLOCK_LI_DETAIL. */
+    MD_BLOCK_LI,
+
+    /* <hr> */
+    MD_BLOCK_HR,
+
+    /* <h1>...</h1> (for levels up to 6)
+     * Detail: Structure MD_BLOCK_H_DETAIL. */
+    MD_BLOCK_H,
+
+    /* <pre><code>...</code></pre>
+     * Note the text lines within code blocks are terminated with '\n'
+     * instead of explicit MD_TEXT_BR. */
+    MD_BLOCK_CODE,
+
+    /* Raw HTML block. This itself does not correspond to any particular HTML
+     * tag. The contents of it _is_ raw HTML source intended to be put
+     * in verbatim form to the HTML output. */
+    MD_BLOCK_HTML,
+
+    /* <p>...</p> */
+    MD_BLOCK_P,
+
+    /* <table>...</table> and its contents.
+     * Detail: Structure MD_BLOCK_TD_DETAIL (used with MD_BLOCK_TH and MD_BLOCK_TD)
+     * Note all of these are used only if extension MD_FLAG_TABLES is enabled. */
+    MD_BLOCK_TABLE,
+    MD_BLOCK_THEAD,
+    MD_BLOCK_TBODY,
+    MD_BLOCK_TR,
+    MD_BLOCK_TH,
+    MD_BLOCK_TD
+} MD_BLOCKTYPE;
+
+/* Span represents an in-line piece of a document which should be rendered with
+ * the same font, color and other attributes. A sequence of spans forms a block
+ * like paragraph or list item. */
+typedef enum MD_SPANTYPE {
+    /* <em>...</em> */
+    MD_SPAN_EM,
+
+    /* <strong>...</strong> */
+    MD_SPAN_STRONG,
+
+    /* <a href="xxx">...</a>
+     * Detail: Structure MD_SPAN_A_DETAIL. */
+    MD_SPAN_A,
+
+    /* <img src="xxx">...</a>
+     * Detail: Structure MD_SPAN_IMG_DETAIL.
+     * Note: Image text can contain nested spans and even nested images.
+     * If rendered into ALT attribute of HTML <IMG> tag, it's responsibility
+     * of the renderer to deal with it.
+     */
+    MD_SPAN_IMG,
+
+    /* <code>...</code> */
+    MD_SPAN_CODE,
+
+    /* <del>...</del>
+     * Note: Recognized only when MD_FLAG_STRIKETHROUGH is enabled.
+     */
+    MD_SPAN_DEL,
+
+    /* For recognizing inline ($) and display ($$) equations
+     * Note: Recognized only when MD_FLAG_LATEXMATHSPANS is enabled.
+     */
+    MD_SPAN_LATEXMATH,
+    MD_SPAN_LATEXMATH_DISPLAY,
+
+    /* Wiki links
+     * Note: Recognized only when MD_FLAG_WIKILINKS is enabled.
+     */
+    MD_SPAN_WIKILINK
+} MD_SPANTYPE;
+
+/* Text is the actual textual contents of span. */
+typedef enum MD_TEXTTYPE {
+    /* Normal text. */
+    MD_TEXT_NORMAL = 0,
+
+    /* NULL character. CommonMark requires replacing NULL character with
+     * the replacement char U+FFFD, so this allows caller to do that easily. */
+    MD_TEXT_NULLCHAR,
+
+    /* Line breaks.
+     * Note these are not sent from blocks with verbatim output (MD_BLOCK_CODE
+     * or MD_BLOCK_HTML). In such cases, '\n' is part of the text itself. */
+    MD_TEXT_BR,         /* <br> (hard break) */
+    MD_TEXT_SOFTBR,     /* '\n' in source text where it is not semantically meaningful (soft break) */
+
+    /* Entity.
+     * (a) Named entity, e.g. &nbsp;
+     *     (Note MD4C does not have a list of known entities.
+     *     Anything matching the regexp /&[A-Za-z][A-Za-z0-9]{1,47};/ is
+     *     treated as a named entity.)
+     * (b) Numerical entity, e.g. &#1234;
+     * (c) Hexadecimal entity, e.g. &#x12AB;
+     *
+     * As MD4C is mostly encoding agnostic, application gets the verbatim
+     * entity text into the MD_RENDERER::text_callback(). */
+    MD_TEXT_ENTITY,
+
+    /* Text in a code block (inside MD_BLOCK_CODE) or inlined code (`code`).
+     * If it is inside MD_BLOCK_CODE, it includes spaces for indentation and
+     * '\n' for new lines. MD_TEXT_BR and MD_TEXT_SOFTBR are not sent for this
+     * kind of text. */
+    MD_TEXT_CODE,
+
+    /* Text is a raw HTML. If it is contents of a raw HTML block (i.e. not
+     * an inline raw HTML), then MD_TEXT_BR and MD_TEXT_SOFTBR are not used.
+     * The text contains verbatim '\n' for the new lines. */
+    MD_TEXT_HTML,
+
+    /* Text is inside an equation. This is processed the same way as inlined code
+     * spans (`code`). */
+    MD_TEXT_LATEXMATH
+} MD_TEXTTYPE;
+
+
+/* Alignment enumeration. */
+typedef enum MD_ALIGN {
+    MD_ALIGN_DEFAULT = 0,   /* When unspecified. */
+    MD_ALIGN_LEFT,
+    MD_ALIGN_CENTER,
+    MD_ALIGN_RIGHT
+} MD_ALIGN;
+
+
+/* String attribute.
+ *
+ * This wraps strings which are outside of a normal text flow and which are
+ * propagated within various detailed structures, but which still may contain
+ * string portions of different types like e.g. entities.
+ *
+ * So, for example, lets consider an image has a title attribute string
+ * set to "foo &quot; bar". (Note the string size is 14.)
+ *
+ * Then the attribute MD_SPAN_IMG_DETAIL::title shall provide the following:
+ *  -- [0]: "foo "   (substr_types[0] == MD_TEXT_NORMAL; substr_offsets[0] == 0)
+ *  -- [1]: "&quot;" (substr_types[1] == MD_TEXT_ENTITY; substr_offsets[1] == 4)
+ *  -- [2]: " bar"   (substr_types[2] == MD_TEXT_NORMAL; substr_offsets[2] == 10)
+ *  -- [3]: (n/a)    (n/a                              ; substr_offsets[3] == 14)
+ *
+ * Note that these conditions are guaranteed:
+ *  -- substr_offsets[0] == 0
+ *  -- substr_offsets[LAST+1] == size
+ *  -- Only MD_TEXT_NORMAL, MD_TEXT_ENTITY, MD_TEXT_NULLCHAR substrings can appear.
+ */
+typedef struct MD_ATTRIBUTE {
+    const MD_CHAR* text;
+    MD_SIZE size;
+    const MD_TEXTTYPE* substr_types;
+    const MD_OFFSET* substr_offsets;
+} MD_ATTRIBUTE;
+
+
+/* Detailed info for MD_BLOCK_UL. */
+typedef struct MD_BLOCK_UL_DETAIL {
+    int is_tight;           /* Non-zero if tight list, zero if loose. */
+    MD_CHAR mark;           /* Item bullet character in MarkDown source of the list, e.g. '-', '+', '*'. */
+} MD_BLOCK_UL_DETAIL;
+
+/* Detailed info for MD_BLOCK_OL. */
+typedef struct MD_BLOCK_OL_DETAIL {
+    unsigned start;         /* Start index of the ordered list. */
+    int is_tight;           /* Non-zero if tight list, zero if loose. */
+    MD_CHAR mark_delimiter; /* Character delimiting the item marks in MarkDown source, e.g. '.' or ')' */
+} MD_BLOCK_OL_DETAIL;
+
+/* Detailed info for MD_BLOCK_LI. */
+typedef struct MD_BLOCK_LI_DETAIL {
+    int is_task;            /* Can be non-zero only with MD_FLAG_TASKLISTS */
+    MD_CHAR task_mark;      /* If is_task, then one of 'x', 'X' or ' '. Undefined otherwise. */
+    MD_OFFSET task_mark_offset;  /* If is_task, then offset in the input of the char between '[' and ']'. */
+} MD_BLOCK_LI_DETAIL;
+
+/* Detailed info for MD_BLOCK_H. */
+typedef struct MD_BLOCK_H_DETAIL {
+    unsigned level;         /* Header level (1 - 6) */
+} MD_BLOCK_H_DETAIL;
+
+/* Detailed info for MD_BLOCK_CODE. */
+typedef struct MD_BLOCK_CODE_DETAIL {
+    MD_ATTRIBUTE info;
+    MD_ATTRIBUTE lang;
+    MD_CHAR fence_char;     /* The character used for fenced code block; or zero for indented code block. */
+} MD_BLOCK_CODE_DETAIL;
+
+/* Detailed info for MD_BLOCK_TH and MD_BLOCK_TD. */
+typedef struct MD_BLOCK_TD_DETAIL {
+    MD_ALIGN align;
+} MD_BLOCK_TD_DETAIL;
+
+/* Detailed info for MD_SPAN_A. */
+typedef struct MD_SPAN_A_DETAIL {
+    MD_ATTRIBUTE href;
+    MD_ATTRIBUTE title;
+} MD_SPAN_A_DETAIL;
+
+/* Detailed info for MD_SPAN_IMG. */
+typedef struct MD_SPAN_IMG_DETAIL {
+    MD_ATTRIBUTE src;
+    MD_ATTRIBUTE title;
+} MD_SPAN_IMG_DETAIL;
+
+/* Detailed info for MD_SPAN_WIKILINK. */
+typedef struct MD_SPAN_WIKILINK {
+    MD_ATTRIBUTE target;
+} MD_SPAN_WIKILINK_DETAIL;
+
+/* Flags specifying extensions/deviations from CommonMark specification.
+ *
+ * By default (when MD_RENDERER::flags == 0), we follow CommonMark specification.
+ * The following flags may allow some extensions or deviations from it.
+ */
+#define MD_FLAG_COLLAPSEWHITESPACE          0x0001  /* In MD_TEXT_NORMAL, collapse non-trivial whitespace into single ' ' */
+#define MD_FLAG_PERMISSIVEATXHEADERS        0x0002  /* Do not require space in ATX headers ( ###header ) */
+#define MD_FLAG_PERMISSIVEURLAUTOLINKS      0x0004  /* Recognize URLs as autolinks even without '<', '>' */
+#define MD_FLAG_PERMISSIVEEMAILAUTOLINKS    0x0008  /* Recognize e-mails as autolinks even without '<', '>' and 'mailto:' */
+#define MD_FLAG_NOINDENTEDCODEBLOCKS        0x0010  /* Disable indented code blocks. (Only fenced code works.) */
+#define MD_FLAG_NOHTMLBLOCKS                0x0020  /* Disable raw HTML blocks. */
+#define MD_FLAG_NOHTMLSPANS                 0x0040  /* Disable raw HTML (inline). */
+#define MD_FLAG_TABLES                      0x0100  /* Enable tables extension. */
+#define MD_FLAG_STRIKETHROUGH               0x0200  /* Enable strikethrough extension. */
+#define MD_FLAG_PERMISSIVEWWWAUTOLINKS      0x0400  /* Enable WWW autolinks (even without any scheme prefix, if they begin with 'www.') */
+#define MD_FLAG_TASKLISTS                   0x0800  /* Enable task list extension. */
+#define MD_FLAG_LATEXMATHSPANS              0x1000  /* Enable $ and $$ containing LaTeX equations. */
+#define MD_FLAG_WIKILINKS                   0x2000  /* Enable wiki links extension. */
+
+#define MD_FLAG_PERMISSIVEAUTOLINKS         (MD_FLAG_PERMISSIVEEMAILAUTOLINKS | MD_FLAG_PERMISSIVEURLAUTOLINKS | MD_FLAG_PERMISSIVEWWWAUTOLINKS)
+#define MD_FLAG_NOHTML                      (MD_FLAG_NOHTMLBLOCKS | MD_FLAG_NOHTMLSPANS)
+
+/* Convenient sets of flags corresponding to well-known Markdown dialects.
+ *
+ * Note we may only support subset of features of the referred dialect.
+ * The constant just enables those extensions which bring us as close as
+ * possible given what features we implement.
+ *
+ * ABI compatibility note: Meaning of these can change in time as new
+ * extensions, bringing the dialect closer to the original, are implemented.
+ */
+#define MD_DIALECT_COMMONMARK               0
+#define MD_DIALECT_GITHUB                   (MD_FLAG_PERMISSIVEAUTOLINKS | MD_FLAG_TABLES | MD_FLAG_STRIKETHROUGH | MD_FLAG_TASKLISTS)
+
+/* Renderer structure.
+ */
+typedef struct MD_PARSER {
+    /* Reserved. Set to zero.
+     */
+    unsigned abi_version;
+
+    /* Dialect options. Bitmask of MD_FLAG_xxxx values.
+     */
+    unsigned flags;
+
+    /* Caller-provided rendering callbacks.
+     *
+     * For some block/span types, more detailed information is provided in a
+     * type-specific structure pointed by the argument 'detail'.
+     *
+     * The last argument of all callbacks, 'userdata', is just propagated from
+     * md_parse() and is available for any use by the application.
+     *
+     * Note any strings provided to the callbacks as their arguments or as
+     * members of any detail structure are generally not zero-terminated.
+     * Application has take the respective size information into account.
+     *
+     * Callbacks may abort further parsing of the document by returning non-zero.
+     */
+    int (*enter_block)(MD_BLOCKTYPE /*type*/, void* /*detail*/, void* /*userdata*/);
+    int (*leave_block)(MD_BLOCKTYPE /*type*/, void* /*detail*/, void* /*userdata*/);
+
+    int (*enter_span)(MD_SPANTYPE /*type*/, void* /*detail*/, void* /*userdata*/);
+    int (*leave_span)(MD_SPANTYPE /*type*/, void* /*detail*/, void* /*userdata*/);
+
+    int (*text)(MD_TEXTTYPE /*type*/, const MD_CHAR* /*text*/, MD_SIZE /*size*/, void* /*userdata*/);
+
+    /* Debug callback. Optional (may be NULL).
+     *
+     * If provided and something goes wrong, this function gets called.
+     * This is intended for debugging and problem diagnosis for developers;
+     * it is not intended to provide any errors suitable for displaying to an
+     * end user.
+     */
+    void (*debug_log)(const char* /*msg*/, void* /*userdata*/);
+
+    /* Reserved. Set to NULL.
+     */
+    void (*syntax)(void);
+} MD_PARSER;
+
+
+/* For backward compatibility. Do not use in new code. */
+typedef MD_PARSER MD_RENDERER;
+
+
+/* Parse the Markdown document stored in the string 'text' of size 'size'.
+ * The renderer provides callbacks to be called during the parsing so the
+ * caller can render the document on the screen or convert the Markdown
+ * to another format.
+ *
+ * Zero is returned on success. If a runtime error occurs (e.g. a memory
+ * fails), -1 is returned. If the processing is aborted due any callback
+ * returning non-zero, md_parse() the return value of the callback is returned.
+ */
+int md_parse(const MD_CHAR* text, MD_SIZE size, const MD_PARSER* parser, void* userdata);
+
+
+#ifdef __cplusplus
+    }  /* extern "C" { */
+#endif
+
+#endif  /* MD4C_MARKDOWN_H */
diff --git a/src/wbuf.c b/src/wbuf.c
new file mode 100644
index 0000000..121c594
--- /dev/null
+++ b/src/wbuf.c
@@ -0,0 +1,187 @@
+#include "wbuf.h"
+
+void WBufInit(WBuf* b) {
+  b->start = 0;
+  b->end = 0;
+  b->ptr = 0;
+}
+
+void WBufFree(WBuf* b) {
+  free(b->start);
+}
+
+void WBufReset(WBuf* b) {
+  b->end = b->start;
+  b->ptr = b->start;
+}
+
+inline size_t WBufCap(WBuf* b) { return b->end - b->start; } // total capacity (size)
+inline size_t WBufLen(WBuf* b) { return b->ptr - b->start; } // valid bytes at start
+inline size_t WBufAvail(WBuf* b) { return b->end - b->ptr; } // bytes available
+
+// grows buffer so that there is at least minspace available space
+static void WBufGrow(WBuf* b, size_t minspace) {
+  // size_t avail = b->end - b->ptr;
+  size_t len = WBufLen(b); // store len before changing b
+  size_t cap = WBufCap(b);
+  do {
+    if (cap == 0) {
+      cap = 512;
+    } else {
+      cap *= 2;
+    }
+  } while (cap - len < minspace);
+  b->start = realloc(b->start, cap);
+  b->end = b->start + cap;
+  b->ptr = b->start + len;
+}
+
+void WBufReserve(WBuf* b, size_t minspace) {
+  if (WBufAvail(b) < minspace) {
+    WBufGrow(b, minspace);
+  }
+}
+
+void WBufAppendc(WBuf* b, char c) {
+  if (WBufAvail(b) < 1) {
+    WBufGrow(b, 1);
+  }
+  *(b->ptr++) = c;
+}
+
+void WBufAppendBytes(WBuf* b, const void* bytes, size_t len) {
+  if (WBufAvail(b) < len) {
+    WBufGrow(b, len);
+  }
+  memcpy(b->ptr, bytes, len);
+  b->ptr += len;
+}
+
+void WBufAppendStr(WBuf* b, const char* pch) {
+  WBufAppendBytes(b, pch, strlen(pch));
+}
+
+void _WBufAppendHtml(WBuf* b, const char* pch, bool isattr) {
+  u32 len = strlen(pch);
+  if (WBufAvail(b) < len) {
+    WBufGrow(b, len);
+  }
+
+  while_loop:
+  while (*pch) {
+    u32 slen = 0;
+    const char* s = NULL;
+    #define S(cstr) s = cstr; slen = strlen(cstr); break;
+    switch (*pch) {
+      case '&': S("&amp;")
+      case '<': S("&lt;")
+      case '>': S("&gt;")
+      case '"': if (isattr) S("&quot;")  // must be last since fallthrough
+      default:
+        *(b->ptr++) = *pch;
+        pch++;
+        goto while_loop;
+    }
+    #undef S
+    WBufAppendBytes(b, s, slen);
+    pch++;
+  }
+}
+
+
+static inline size_t fmtu32(u32 n, u32 radix, char* buf) {
+  if (n == 0) {
+    *buf = '0';
+    return 1;
+  }
+
+  // longest possible string is 32 bytes
+  // (0xFFFFFFFF, 4294967295, 11111111111111111111111111111111)
+  const u32 Z = 32;
+  char* p = buf + Z;
+
+  if (radix < 11) {
+    if (radix > 1) {
+      // 0-9
+      for (; n; n /= radix) {
+        *--p = '0' + n % radix;
+      }
+    }
+  } else if (radix < 37) {
+    // 0-9, A-Z
+    u32 c = 0;
+    for (; n; n /= radix) {
+      c = n % radix;
+      if (c > 9) {
+        c += 7;
+      }
+      *--p = '0' + c;
+    }
+  }
+
+  size_t len = Z - (p - buf);
+
+  // Shift buffer contents to the beginning
+  //
+  // len=4  Z=7
+  //   ___ABCD  i=3 'A' o=0  A__ABCD
+  //   A__ABCD  i=4 'B' o=1  AB_ABCD
+  //   AB_ABCD  i=5 'C' o=2  ABCABCD
+  //   ABCABCD  i=6 'D' o=3  ABCDBCD
+  //
+  // len=5  Z=7
+  //   _ABCDEF  i=1 'A' o=0  AABCDEF
+  //   AABCDEF  i=2 'B' o=1  ABBCDEF
+  //   ABBCDEF  i=3 'C' o=2  ABCCDEF
+  //   ABCCDEF  i=4 'D' o=3  ABCDDEF
+  //   ABCDDEF  i=5 'E' o=4  ABCDEEF
+  //   ABCDEEF  i=6 'F' o=5  ABCDEFF
+  //
+  if (len <= Z/2) {
+    // move short strings in 4-byte chunks
+    u32* inp = (u32*)p;
+    u32* out = (u32*)buf;
+    const u32* end = (u32*)(buf + Z);
+    while (inp < end) {
+      *out++ = *inp++;
+    }
+  } else if (len < Z) {
+    const char* end = buf + Z;
+    while (p < end) {
+      *buf++ = *p++;
+    }
+  }
+
+  return len;
+}
+
+
+void WBufAppendU32(WBuf* b, u32 n, u32 radix) {
+  WBufReserve(b, 32);
+  b->ptr += fmtu32(n, radix, b->ptr);
+}
+
+
+// static void WBufAppendSlug(WBuf* b, const char* text) {
+//   size_t len = strlen(text);
+//   WBufReserve(b, len);
+//   while (*text) {
+//     char c = *text++;
+//     if ((c >= '0' && c <= '9') ||
+//         (c >= 'a' && c <= 'z') ||
+//         c == '.' ||
+//         c == '-'
+//     ) {
+//       *(b->ptr++) = c;
+//     } else if ((c >= '0' && c <= '9') ||
+//         (c >= 'a' && c <= 'z') ||
+//         (c >= 'A' && c <= 'Z') ||
+//         c == '.' ||
+//         c == '-'
+//     ) {
+//       *(b->ptr++) = tolower(c);
+//     } else if (c == ' ') {
+//       *(b->ptr++) = '-';
+//     } // else: ignore
+//   }
+// }
diff --git a/src/wbuf.h b/src/wbuf.h
new file mode 100644
index 0000000..4f0df26
--- /dev/null
+++ b/src/wbuf.h
@@ -0,0 +1,29 @@
+#pragma once
+#include "common.h"
+
+typedef struct WBuf_s {
+  char* start; // pointer to start of data
+  char* end;   // pointer to end of data
+  char* ptr;   // pointer to end of valid bytes (cursor)
+} WBuf;
+
+void WBufInit(WBuf*);
+void WBufFree(WBuf*);
+void WBufReset(WBuf*);
+
+size_t WBufCap(WBuf*);   // total capacity (size)
+size_t WBufLen(WBuf*);   // valid bytes at start
+size_t WBufAvail(WBuf*); // bytes available
+
+void WBufReserve(WBuf*, size_t minspace);
+
+void WBufAppendc(WBuf*, char c);
+void WBufAppendBytes(WBuf*, const void* bytes, size_t len);
+void WBufAppendStr(WBuf*, const char* pch);
+#define WBufAppendCStr(b, cstr) WBufAppendBytes((b), (cstr), strlen(cstr))
+#define WBufAppendHtml(b, pch) _WBufAppendHtml(b, pch, false)
+#define WBufAppendHtmlAttr(b, pch) _WBufAppendHtml(b, pch, true)
+void _WBufAppendHtml(WBuf*, const char* pch, bool isattr);
+
+// append u32 integer n. radix must be in range [2-36]
+void WBufAppendU32(WBuf*, u32 n, u32 radix);
diff --git a/src/wlib.c b/src/wlib.c
new file mode 100644
index 0000000..a152e48
--- /dev/null
+++ b/src/wlib.c
@@ -0,0 +1,46 @@
+#include "common.h"
+#include "wlib.h"
+
+// globals of last error
+static u32         errcode = 0;
+static const char* errmsg = "";
+static bool        errmsg_free = false;
+
+
+export void* wrealloc(void* ptr, size_t size) {
+  return realloc(ptr, size);
+}
+
+export void wfree(void* ptr) {
+  free(ptr);
+}
+
+
+export u32 WErrGetCode() {
+  return errcode;
+}
+
+export const char* WErrGetMsg() {
+  return errmsg;
+}
+
+
+export void WErrClear() {
+  errcode = 0;
+  if (errmsg_free) {
+    free((void*)errmsg);
+    errmsg_free = false;
+  }
+  errmsg = NULL;
+}
+
+
+bool WErrSet(u32 code, const char* msg) {
+  WErrClear();
+  if (code != 0) {
+    errcode = code;
+    errmsg = msg;
+    return true;
+  }
+  return false;
+}
diff --git a/src/wlib.h b/src/wlib.h
new file mode 100644
index 0000000..df2ae6b
--- /dev/null
+++ b/src/wlib.h
@@ -0,0 +1,17 @@
+#pragma once
+
+// WErrOK == no error
+#define WErrOK 0
+
+// WErrSet sets the code and message. Returns false if code == 0, true otherwise.
+bool WErrSet(u32 code, const char* msg);
+
+// clear error state
+// sets code to WErrOK and message to ""
+void WErrClear();
+
+// read code
+u32 WErrGetCode();
+
+// read message
+const char* WErrGetMsg();
diff --git a/src/wlib.js b/src/wlib.js
new file mode 100644
index 0000000..30336f7
--- /dev/null
+++ b/src/wlib.js
@@ -0,0 +1,382 @@
+// WError represents an error from a wasm module
+//
+export class WError extends Error {
+  constructor(code, message, file, line) {
+    super(message, file || "wasm", line || 0)
+    this.name = "WError"
+    this.code = code
+  }
+}
+
+// Get & clear last WErr. Returns null if there was no error.
+// Uses a descriptive name so to help in stack traces.
+export function error_from_wasm() { // :WError|null
+  let code = _WErrGetCode()
+  if (code != 0) {
+    let msgptr = _WErrGetMsg()
+    let message = msgptr != 0 ? UTF8ArrayToString(HEAPU8, msgptr) : ""
+    _WErrClear()
+    return new WError(code, message)
+  }
+}
+
+export function werrCheck() {
+  let err = error_from_wasm()
+  if (err) {
+    throw err
+  }
+}
+
+// bytebuf takes an ArrayBuffer or Iterable<byte> and returns a Uint8Array
+//
+// bytebuf(buf :ArrayBuffer|Iterable<byte>|byte[]) : Uint8Array
+//
+export function bytebuf(buf) {
+  if (buf instanceof Uint8Array) {
+    return buf
+  }
+  return new Uint8Array(buf)
+}
+
+// mallocbuf allocates memory in the WASM heap and copies length bytes
+// from byteArray into the allocated location.
+// Returns the address to the allocated memory.
+//
+export function mallocbuf(byteArray, length) {
+  const offs = _wrealloc(0, length)
+  HEAPU8.set(byteArray, offs)
+  return offs
+}
+
+// malloc32 allocates at least size bytes on 32-bit boundary.
+// Returns two values: original_address and aligned_address.
+// You should call free() with original_address.
+//
+export function malloc32(size) {
+  let ptr_orig = _wrealloc(0, size + 3)
+  return [ptr_orig, ptr_orig + (4 - (ptr_orig % 4))]
+}
+
+// malloc16 allocates at least size bytes on 16-bit boundary.
+// Returns two values: original_address and aligned_address.
+// You should call free() with original_address.
+//
+export function malloc16(size) {
+  let ptr_orig = _wrealloc(0, size + 1)
+  return [ptr_orig, ptr_orig + (ptr_orig % 2)]
+}
+
+// free wasm heap memory
+export function free(ptr) {
+  _wfree(ptr)
+}
+
+
+// writeUTF16Str writes str as UTF16 to address ptr.
+// ptr must be aligned on a 16-bit boundary.
+//
+export function writeUTF16Str(str, ptr) {
+  for (let i = 0; i < str.length; ++i) {
+    HEAP16[ptr >> 1] = str.charCodeAt(i)
+    ptr += 2
+  }
+}
+
+
+// withTmpBytePtr takes an ArrayBuffer or Uint8Array and:
+// 1. copies it into the WASM module memory
+// 2. calls fn(pointer, size)
+// 3. calls free(pointer)
+//
+export function withTmpBytePtr(buf, fn) {
+  const u8buf = bytebuf(buf)
+  const size = u8buf.length
+  const ptr = mallocbuf(u8buf, size)
+  const r = fn(ptr, size)
+  free(ptr)
+  return r
+}
+
+
+// withUTF16Str takes a JavaScript string and:
+// 1. copies it into the WASM module memory as UTF16, 16-bit aligned
+// 2. calls fn(aligned_pointer, bytesize)
+// 3. calls free(original_pointer)
+//
+export function withUTF16Str(str, fn) {
+  let bytesize = str.length * 2
+  let ptr = _wrealloc(0, bytesize + 1) // +1 for alignment
+  let aligned_ptr = (ptr % 2 != 0) ? ptr + 1 : ptr
+  writeUTF16Str(str, aligned_ptr, bytesize)
+  let r = fn(aligned_ptr, bytesize)
+  free(ptr)
+  return r
+}
+
+
+export function cstrlen(ptr) {
+  let end = ptr >> 0
+  while (HEAP8[end]) { end++ }
+  return end - ptr
+}
+
+
+// asciicstr interprets memory in buf at offset as an ASCII-encoded string,
+// and returns a JavaScript string.
+//
+export function asciicstr(buf, offset) {
+  let str = ''
+  while (true) {
+    let b = buf[offset++ >> 0]
+    if (b == 0) { break }
+    str += String.fromCharCode(b)
+  }
+  return str
+}
+
+// cstrStack allocates a UTF-8 encoded version of str as a nul-terminated
+// "C string" on the stack.
+//
+export function cstrStack(str) {
+  var ret = 0
+  if (str !== null && str !== undefined && str !== 0) {
+    var len = (str.length << 2) + 1
+    ret = stackAlloc(len)
+    stringToUTF8Array(str, HEAPU8, ret, len)
+  }
+  return ret
+}
+
+// used by strFromUTF8Ptr as a temporary address-sized integer
+let tmpPtr = 0
+
+Module.postRun.push(() => {
+  tmpPtr = _wrealloc(0, 4)
+})
+
+
+// strFromUTF8Ptr provides a pointer-sized integer that can be written
+// to by fn. fn is expected to return the number of bytes written to the
+// address pointed to by p. The address is dereferenced and the written
+// number of bytes are interpreted as UTF8, returning a JS string.
+//
+// This is useful for efficiently converting UTF8 strings that are
+// already allocated inside the library to JavaScript strings.
+//
+// Example:
+//   strFromUTF8Ptr((p)=> _FooGetName(ptr, p))
+//   ...
+//   u32 EXPORT FooGetName(Foo* f, const char** p) {
+//     *p = f->name_ptr;
+//     return f->name_len;
+//   }
+//
+// Synopsis:
+//   strFromUTF8Ptr( fn :(p:int)=>int )
+//
+export function strFromUTF8Ptr(fn) {
+  let z = fn(tmpPtr)
+  let offs = HEAP32[tmpPtr >> 2]
+  return z == 0 ? "" : utf8.decode(HEAPU8.subarray(offs, offs + z))
+}
+
+// withOutPtr facilitates the following:
+//
+// 1. calls fn with an address to memory that fits a pointer.
+//    fn(outptr) is expected to:
+//    a. Write some data into heap memory
+//    b. Write the address of that data at outptr (i.e. *outptr = heapaddr)
+//    c. Return the length of data written
+//
+// 2. withOutPtr reads the address from outptr
+//    a. If the address is 0 (NULL), returns null
+//    b. Else a slice of the heap memory is created, starting at *outptr
+//       and ending at ((*outptr) + length_returned_by_fn).
+//       A free() function is added to the buffer and it is returned.
+//
+// It is important to free() the memory of the returned buffer when the caller is done.
+// This is implementation specific, so this function can not help you with that.
+//
+// The return type is as follows:
+//   interface HeapData extends Uint8Array {
+//     readonly heapAddr :number  // address in heap == *outptr
+//   }
+//
+// Example:
+//
+//   // WASM module, in C:
+//   typedef struct Color_ { char r, g, b; } Color;
+//   size_t newColor(const Color** outp) {
+//     Color* c = (Color*)malloc(sizeof(Color));
+//     c->r = 0xFF;
+//     c->g = 0xCA;
+//     c->b = 0x0;
+//     *outp = c;
+//     return sizeof(Color);
+//   }
+//   void freeColor(const Color* p) {
+//     free(p);
+//   }
+//
+//   // JavaScript
+//   let color = withOutPtr(_newColor)
+//   console.log("RGB:", color[0], color[1], color[2])
+//   _freeColor(color.heapAddr)
+//
+export function withOutPtr(fn) {
+  let len = fn(tmpPtr)
+  let addr = HEAP32[tmpPtr >> 2]
+  if (addr == 0) {
+    return null
+  }
+  let buf = HEAPU8.subarray(addr, addr + len)
+  buf.heapAddr = addr
+  return buf
+}
+
+
+
+// withStackFrame saves the stack and calls fn; code in fn can then
+// allocate stack memory. When fn returns or throws, the stack is restored
+// to the point before this function was called.
+// Returns the return value of fn.
+//
+export function withStackFrame(fn) {
+  let stack = stackSave()
+  try {
+    return fn()
+  } finally {
+    stackRestore(stack)
+  }
+}
+
+
+// ureadU16 reads a (little endian) unsigned 16-bit integer from buf at addr
+//
+export function ureadU16(buf, addr) {
+  return ((buf[addr] | (buf[addr + 1] << 8))) >>> 0
+}
+
+// ureadI16 reads a (little endian) signed 16-bit integer from buf at addr
+//
+export function ureadI16(buf, addr) {
+  let n = ((buf[addr]) | (buf[addr + 1] << 8))
+  return n >= 0x8000 ? n - 0x10000 : n
+}
+
+// ureadU32 reads a (little endian) unsigned 32-bit integer from buf at addr
+//
+export function ureadU32(buf, addr) {
+  return (
+    (buf[addr + 3] << 24) |
+    (buf[addr + 2] << 16) |
+    (buf[addr + 1] << 8) |
+    (buf[addr] >>> 0)
+  ) >>> 0
+}
+
+// ureadU32 reads a (little endian) signed 32-bit integer from buf at addr
+//
+export function ureadI32(buf, addr) {
+  return (
+    (buf[addr + 3] << 24) |
+    (buf[addr + 2] << 16) |
+    (buf[addr + 1] << 8) |
+    (buf[addr] >>> 0)
+  )
+}
+
+
+// export function ureadI16be(buf, addr) {
+//   let n = ((buf[addr] << 8) | (buf[addr + 1]))
+//   return n >= 0x8000 ? n - 0x10000 : n
+// }
+
+// export function ureadU16be(buf, addr) {
+//   return ((buf[addr] << 8) | (buf[addr + 1])) >>> 0
+// }
+
+// export function ureadU32be(buf, addr) {
+//   return (
+//     (buf[addr] << 24) |
+//     (buf[addr + 1] << 16) |
+//     (buf[addr + 2] << 8) |
+//     (buf[addr + 3])
+//   ) >>> 0
+// }
+
+// export function ureadI32be(buf, addr) {
+//   return (
+//     (buf[addr] << 24) |
+//     (buf[addr + 1] << 16) |
+//     (buf[addr + 2] << 8) |
+//     (buf[addr + 3])
+//   )
+// }
+
+
+// asciiStrToU32 converts a <=4 character string to a u32.
+// For example, string -> hb_tag_t
+//
+export function asciiStrToU32(s) {
+  // Note: Should match #define HB_TAG(c1,c2,c3,c4) in hb-common.h
+  return (
+    ((s.charCodeAt(0) >>> 0) << 24) >>> 0 | // "">>> 0" u32 please
+    ((s.charCodeAt(1) >>> 0) << 16) |
+    ((s.charCodeAt(2) >>> 0) << 8) |
+     (s.charCodeAt(3) >>> 0)
+  )
+}
+
+export const hbtag = asciiStrToU32
+
+// u32ToAsciiStr converts a u32 to a ASCII string
+// For example, hb_tag_t -> string
+//
+export function u32ToAsciiStr(u) {
+  return String.fromCharCode(
+    ((u >> 24) & 0xff),
+    ((u >> 16) & 0xff),
+    ((u >>  8) & 0xff),
+    ((u >>  0) & 0xff)
+  )
+}
+
+// interface utf8 {
+//   encode(s :string) :Uint8Array
+//   decode(b :Uint8Array) :string
+// }
+export const utf8 = typeof TextEncoder != 'undefined' ? (() => {
+  // Modern browsers
+  const enc = new TextEncoder("utf-8")
+  const dec = new TextDecoder("utf-8")
+  return {
+    encode: s => enc.encode(s),
+    decode: b => dec.decode(b),
+  };
+})() : typeof Buffer != 'undefined' ? {
+  // Nodejs
+  encode: s => new Uint8Array(Buffer.from(s, 'utf-8')),
+  decode: b =>
+    Buffer.from(b.buffer, b.byteOffset, b.byteLength).toString('utf8'),
+} : {
+  // Some other pesky JS environment
+  encode: s => {
+    let asciiBytes = [];
+    for (let i = 0, L = s.length; i != L; ++i) {
+      asciiBytes[i] = 0xff & s.charCodeAt(i);
+    }
+    return new Uint8Array(asciiBytes);
+  },
+  decode: b => String(b),
+}
+
+
+// Converts between 16.16 fixed-point number and 64-bit floating-point numbers
+export function fixedToFloat(i) {
+  return i / 65536.0
+}
+export function floatToFixed(f) {
+  return (f * 65536.0) >> 0
+}
+
diff --git a/wasmc.js b/wasmc.js
new file mode 100644
index 0000000..8cced2a
--- /dev/null
+++ b/wasmc.js
@@ -0,0 +1,43 @@
+const package = require("./package.json")
+const outdir = debug ? builddir : "dist"
+
+const m = {
+  name:    "markdown",
+  out:     outdir + "/markdown.js",
+  jsentry: "src/md.js",
+  sources: [
+    "src/wlib.c",
+    "src/wbuf.c",
+    "src/md.c",
+    "src/md4c.c",
+    "src/fmt_html.c",
+    // "src/fmt_json.c",
+  ],
+  cflags: debug ? ["-DDEBUG=1"] : [],
+  constants: {
+    VERSION: package.version,
+  },
+}
+
+
+if (!debug) {
+  // generic js module
+  module({...m})
+
+  // node cjs module
+  module({ ...m,
+    name:    "markdown-node",
+    out:     outdir + "/markdown.node.js",
+    target:  "node",
+    embed:   true,
+  })
+}
+
+// node es module
+module({ ...m,
+  name:    "markdown-es",
+  out:     outdir + "/markdown.es.js",
+  format:  "es",
+  target:  "node",
+  embed:   true,
+})