From 437d3f8bd5633194406fb70b3567bfeb76f18ea5 Mon Sep 17 00:00:00 2001
From: Titus Wormer <tituswormer@gmail.com>
Date: Fri, 15 Jul 2022 17:51:49 +0200
Subject: Add all commonmark tests

---
 .gitignore          |    1 +
 Cargo.toml          |    1 +
 build.rs            |   88 +
 tests/commonmark.rs | 9142 +++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 9232 insertions(+)
 create mode 100644 tests/commonmark.rs

diff --git a/.gitignore b/.gitignore
index ec3af4f..0e0f1b9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@
 *.lock
 coverage/
 target
+commonmark-data.txt
 unicode-data.txt
diff --git a/Cargo.toml b/Cargo.toml
index 1c443c3..1b075af 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,5 +18,6 @@ env_logger = "0.9"
 log = "0.4"
 
 [build-dependencies]
+regex = "1.5"
 reqwest = "0.11"
 tokio = { version = "1.12", features = ["full"] }
diff --git a/build.rs b/build.rs
index cdfeac4..feb22c8 100644
--- a/build.rs
+++ b/build.rs
@@ -1,8 +1,96 @@
 extern crate reqwest;
+use regex::Regex;
 use std::fs;
 
 #[tokio::main]
 async fn main() {
+    commonmark().await;
+    punctuation().await;
+}
+
+async fn commonmark() {
+    let url = "https://raw.githubusercontent.com/commonmark/commonmark-spec/0.30/spec.txt";
+    let data_url = "commonmark-data.txt";
+    #[allow(unused_variables)]
+    let code_url = "tests/commonmark.rs";
+
+    let value = if let Ok(value) = fs::read_to_string(data_url) {
+        value
+    } else {
+        let value = reqwest::get(url).await.unwrap().text().await.unwrap();
+
+        fs::write(data_url, value.clone()).unwrap();
+
+        value
+    };
+
+    let re = Regex::new(r"(?m)(?:^`{32} example\n[\s\S]*?\n`{32}$|^#{1,6} *(.*)$)").unwrap();
+    let re_heading_prefix = Regex::new(r"#{1,6} ").unwrap();
+    let re_in_out = Regex::new(r"\n\.(?:\n|$)").unwrap();
+    let mut current_heading: Option<String> = None;
+    let mut case_index = 0;
+
+    let value = Regex::new(r"<!-- END TESTS -->[\s\S]*")
+        .unwrap()
+        .replace(&value, "");
+    let value = Regex::new(r"→").unwrap().replace_all(&value, "\t");
+    let mut cases: Vec<String> = vec![];
+
+    for mat in re.find_iter(&value) {
+        let mut lines = mat.as_str().lines().collect::<Vec<_>>();
+
+        if lines.len() == 1 {
+            current_heading = Some(re_heading_prefix.replace(lines[0], "").to_string());
+        } else {
+            lines.remove(0);
+            lines.pop();
+            let section = current_heading.as_ref().unwrap();
+            let case = lines.join("\n");
+            let parts = re_in_out.split(&case).collect::<Vec<_>>();
+            let input = format!("{}\n", parts[0]);
+            let output = if parts[1].is_empty() {
+                "".to_string()
+            } else {
+                format!("{}\n", parts[1])
+            };
+
+            let test = format!("    assert_eq!(\n        micromark_with_options(r###\"{}\"###, DANGER),\n        r###\"{}\"###,\n        r###\"{} ({})\"###\n);", input, output, section, case_index);
+
+            cases.push(test);
+
+            case_index += 1;
+        }
+    }
+
+    #[allow(unused_variables)]
+    let doc = format!(
+        "//! CommonMark test suite.
+
+// > 👉 **Important**: this module is generated by `build.rs`.
+// > It is generate from the latest Unicode data.
+
+extern crate micromark;
+use micromark::{{micromark_with_options, Options}};
+
+const DANGER: &Options = &Options {{
+    allow_dangerous_html: true,
+    allow_dangerous_protocol: true,
+    default_line_ending: None,
+}};
+
+#[test]
+fn commonmark() {{
+{}
+}}
+",
+        cases.join("\n\n")
+    );
+
+    // To do: enable when CM is completely fixed.
+    // fs::write(code_url, doc).unwrap();
+}
+
+async fn punctuation() {
     let url = "https://www.unicode.org/Public/UCD/latest/ucd/UnicodeData.txt";
     let data_url = "unicode-data.txt";
     let code_url = "src/unicode.rs";
diff --git a/tests/commonmark.rs b/tests/commonmark.rs
new file mode 100644
index 0000000..dade5ff
--- /dev/null
+++ b/tests/commonmark.rs
@@ -0,0 +1,9142 @@
+//! CommonMark test suite.
+
+// > 👉 **Important**: this module is generated by `build.rs`.
+// > It is generate from the latest Unicode data.
+
+extern crate micromark;
+use micromark::{micromark_with_options, Options};
+
+const DANGER: &Options = &Options {
+    allow_dangerous_html: true,
+    allow_dangerous_protocol: true,
+    default_line_ending: None,
+};
+
+#[test]
+fn commonmark() {
+    assert_eq!(
+        micromark_with_options(
+            r###"	foo	baz		bim
+"###,
+            DANGER
+        ),
+        r###"<pre><code>foo	baz		bim
+</code></pre>
+"###,
+        r###"Tabs (0)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"  	foo	baz		bim
+"###,
+            DANGER
+        ),
+        r###"<pre><code>foo	baz		bim
+</code></pre>
+"###,
+        r###"Tabs (1)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    a	a
+    ὐ	a
+"###,
+            DANGER
+        ),
+        r###"<pre><code>a	a
+ὐ	a
+</code></pre>
+"###,
+        r###"Tabs (2)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"  - foo
+
+	bar
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>foo</p>
+<p>bar</p>
+</li>
+</ul>
+"###,
+        r###"Tabs (3)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- foo
+
+		bar
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>foo</p>
+<pre><code>  bar
+</code></pre>
+</li>
+</ul>
+"###,
+        r###"Tabs (4)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###">		foo
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<pre><code>  foo
+</code></pre>
+</blockquote>
+"###,
+        r###"Tabs (5)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"-		foo
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<pre><code>  foo
+</code></pre>
+</li>
+</ul>
+"###,
+        r###"Tabs (6)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    foo
+	bar
+"###,
+            DANGER
+        ),
+        r###"<pre><code>foo
+bar
+</code></pre>
+"###,
+        r###"Tabs (7)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###" - foo
+    //    - bar
+    // 	 - baz
+    // "###, DANGER),
+    //         r###"<ul>
+    // <li>foo
+    // <ul>
+    // <li>bar
+    // <ul>
+    // <li>baz</li>
+    // </ul>
+    // </li>
+    // </ul>
+    // </li>
+    // </ul>
+    // "###,
+    //         r###"Tabs (8)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"#	Foo
+"###,
+            DANGER
+        ),
+        r###"<h1>Foo</h1>
+"###,
+        r###"Tabs (9)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*	*	*
+"###,
+            DANGER
+        ),
+        r###"<hr />
+"###,
+        r###"Tabs (10)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"\!\"\#\$\%\&\'\(\)\*\+\,\-\.\/\:\;\<\=\>\?\@\[\\\]\^\_\`\{\|\}\~
+"###,
+            DANGER
+        ),
+        r###"<p>!&quot;#$%&amp;'()*+,-./:;&lt;=&gt;?@[\]^_`{|}~</p>
+"###,
+        r###"Backslash escapes (11)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"\	\A\a\ \3\φ\«
+"###,
+            DANGER
+        ),
+        r###"<p>\	\A\a\ \3\φ\«</p>
+"###,
+        r###"Backslash escapes (12)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"\*not emphasized*
+\<br/> not a tag
+\[not a link](/foo)
+\`not code`
+1\. not a list
+\* not a list
+\# not a heading
+\[foo]: /url "not a reference"
+\&ouml; not a character entity
+"###,
+            DANGER
+        ),
+        r###"<p>*not emphasized*
+&lt;br/&gt; not a tag
+[not a link](/foo)
+`not code`
+1. not a list
+* not a list
+# not a heading
+[foo]: /url &quot;not a reference&quot;
+&amp;ouml; not a character entity</p>
+"###,
+        r###"Backslash escapes (13)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"\\*emphasis*
+"###,
+            DANGER
+        ),
+        r###"<p>\<em>emphasis</em></p>
+"###,
+        r###"Backslash escapes (14)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo\
+bar
+"###,
+            DANGER
+        ),
+        r###"<p>foo<br />
+bar</p>
+"###,
+        r###"Backslash escapes (15)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`` \[\` ``
+"###,
+            DANGER
+        ),
+        r###"<p><code>\[\`</code></p>
+"###,
+        r###"Backslash escapes (16)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    \[\]
+"###,
+            DANGER
+        ),
+        r###"<pre><code>\[\]
+</code></pre>
+"###,
+        r###"Backslash escapes (17)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"~~~
+\[\]
+~~~
+"###,
+            DANGER
+        ),
+        r###"<pre><code>\[\]
+</code></pre>
+"###,
+        r###"Backslash escapes (18)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<http://example.com?find=\*>
+"###,
+            DANGER
+        ),
+        r###"<p><a href="http://example.com?find=%5C*">http://example.com?find=\*</a></p>
+"###,
+        r###"Backslash escapes (19)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a href="/bar\/)">
+"###,
+            DANGER
+        ),
+        r###"<a href="/bar\/)">
+"###,
+        r###"Backslash escapes (20)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo](/bar\* "ti\*tle")
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/bar*" title="ti*tle">foo</a></p>
+"###,
+        r###"Backslash escapes (21)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]
+
+[foo]: /bar\* "ti\*tle"
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/bar*" title="ti*tle">foo</a></p>
+"###,
+        r###"Backslash escapes (22)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"``` foo\+bar
+foo
+```
+"###,
+            DANGER
+        ),
+        r###"<pre><code class="language-foo+bar">foo
+</code></pre>
+"###,
+        r###"Backslash escapes (23)"###
+    );
+
+    // To do: bug.
+    //     assert_eq!(
+    //         micromark_with_options(r###"&nbsp; &amp; &copy; &AElig; &Dcaron;
+    // &frac34; &HilbertSpace; &DifferentialD;
+    // &ClockwiseContourIntegral; &ngE;
+    // "###, DANGER),
+    //         r###"<p>  &amp; © Æ Ď
+    // ¾ ℋ ⅆ
+    // ∲ ≧̸</p>
+    // "###,
+    //         r###"Entity and numeric character references (24)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"&#35; &#1234; &#992; &#0;
+"###,
+            DANGER
+        ),
+        r###"<p># Ӓ Ϡ �</p>
+"###,
+        r###"Entity and numeric character references (25)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"&#X22; &#XD06; &#xcab;
+"###,
+            DANGER
+        ),
+        r###"<p>&quot; ആ ಫ</p>
+"###,
+        r###"Entity and numeric character references (26)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"&nbsp &x; &#; &#x;
+&#87654321;
+&#abcdef0;
+&ThisIsNotDefined; &hi?;
+"###,
+            DANGER
+        ),
+        r###"<p>&amp;nbsp &amp;x; &amp;#; &amp;#x;
+&amp;#87654321;
+&amp;#abcdef0;
+&amp;ThisIsNotDefined; &amp;hi?;</p>
+"###,
+        r###"Entity and numeric character references (27)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"&copy
+"###,
+            DANGER
+        ),
+        r###"<p>&amp;copy</p>
+"###,
+        r###"Entity and numeric character references (28)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"&MadeUpEntity;
+"###,
+            DANGER
+        ),
+        r###"<p>&amp;MadeUpEntity;</p>
+"###,
+        r###"Entity and numeric character references (29)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a href="&ouml;&ouml;.html">
+"###,
+            DANGER
+        ),
+        r###"<a href="&ouml;&ouml;.html">
+"###,
+        r###"Entity and numeric character references (30)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo](/f&ouml;&ouml; "f&ouml;&ouml;")
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/f%C3%B6%C3%B6" title="föö">foo</a></p>
+"###,
+        r###"Entity and numeric character references (31)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]
+
+[foo]: /f&ouml;&ouml; "f&ouml;&ouml;"
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/f%C3%B6%C3%B6" title="föö">foo</a></p>
+"###,
+        r###"Entity and numeric character references (32)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"``` f&ouml;&ouml;
+foo
+```
+"###,
+            DANGER
+        ),
+        r###"<pre><code class="language-föö">foo
+</code></pre>
+"###,
+        r###"Entity and numeric character references (33)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`f&ouml;&ouml;`
+"###,
+            DANGER
+        ),
+        r###"<p><code>f&amp;ouml;&amp;ouml;</code></p>
+"###,
+        r###"Entity and numeric character references (34)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    f&ouml;f&ouml;
+"###,
+            DANGER
+        ),
+        r###"<pre><code>f&amp;ouml;f&amp;ouml;
+</code></pre>
+"###,
+        r###"Entity and numeric character references (35)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"&#42;foo&#42;
+*foo*
+"###,
+            DANGER
+        ),
+        r###"<p>*foo*
+<em>foo</em></p>
+"###,
+        r###"Entity and numeric character references (36)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###"&#42; foo
+
+    // * foo
+    // "###, DANGER),
+    //         r###"<p>* foo</p>
+    // <ul>
+    // <li>foo</li>
+    // </ul>
+    // "###,
+    //         r###"Entity and numeric character references (37)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo&#10;&#10;bar
+"###,
+            DANGER
+        ),
+        r###"<p>foo
+
+bar</p>
+"###,
+        r###"Entity and numeric character references (38)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"&#9;foo
+"###,
+            DANGER
+        ),
+        r###"<p>	foo</p>
+"###,
+        r###"Entity and numeric character references (39)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[a](url &quot;tit&quot;)
+"###,
+            DANGER
+        ),
+        r###"<p>[a](url &quot;tit&quot;)</p>
+"###,
+        r###"Entity and numeric character references (40)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###"- `one
+    // - two`
+    // "###, DANGER),
+    //         r###"<ul>
+    // <li>`one</li>
+    // <li>two`</li>
+    // </ul>
+    // "###,
+    //         r###"Precedence (41)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"***
+---
+___
+"###,
+            DANGER
+        ),
+        r###"<hr />
+<hr />
+<hr />
+"###,
+        r###"Thematic breaks (42)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"+++
+"###,
+            DANGER
+        ),
+        r###"<p>+++</p>
+"###,
+        r###"Thematic breaks (43)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"===
+"###,
+            DANGER
+        ),
+        r###"<p>===</p>
+"###,
+        r###"Thematic breaks (44)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"--
+**
+__
+"###,
+            DANGER
+        ),
+        r###"<p>--
+**
+__</p>
+"###,
+        r###"Thematic breaks (45)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###" ***
+  ***
+   ***
+"###,
+            DANGER
+        ),
+        r###"<hr />
+<hr />
+<hr />
+"###,
+        r###"Thematic breaks (46)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    ***
+"###,
+            DANGER
+        ),
+        r###"<pre><code>***
+</code></pre>
+"###,
+        r###"Thematic breaks (47)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+    ***
+"###,
+            DANGER
+        ),
+        r###"<p>Foo
+***</p>
+"###,
+        r###"Thematic breaks (48)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_____________________________________
+"###,
+            DANGER
+        ),
+        r###"<hr />
+"###,
+        r###"Thematic breaks (49)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###" - - -
+"###,
+            DANGER
+        ),
+        r###"<hr />
+"###,
+        r###"Thematic breaks (50)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###" **  * ** * ** * **
+"###,
+            DANGER
+        ),
+        r###"<hr />
+"###,
+        r###"Thematic breaks (51)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"-     -      -      -
+"###,
+            DANGER
+        ),
+        r###"<hr />
+"###,
+        r###"Thematic breaks (52)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- - - -
+"###,
+            DANGER
+        ),
+        r###"<hr />
+"###,
+        r###"Thematic breaks (53)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_ _ _ _ a
+
+a------
+
+---a---
+"###,
+            DANGER
+        ),
+        r###"<p>_ _ _ _ a</p>
+<p>a------</p>
+<p>---a---</p>
+"###,
+        r###"Thematic breaks (54)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###" *-*
+"###,
+            DANGER
+        ),
+        r###"<p><em>-</em></p>
+"###,
+        r###"Thematic breaks (55)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###"- foo
+    // ***
+    // - bar
+    // "###, DANGER),
+    //         r###"<ul>
+    // <li>foo</li>
+    // </ul>
+    // <hr />
+    // <ul>
+    // <li>bar</li>
+    // </ul>
+    // "###,
+    //         r###"Thematic breaks (56)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+***
+bar
+"###,
+            DANGER
+        ),
+        r###"<p>Foo</p>
+<hr />
+<p>bar</p>
+"###,
+        r###"Thematic breaks (57)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+---
+bar
+"###,
+            DANGER
+        ),
+        r###"<h2>Foo</h2>
+<p>bar</p>
+"###,
+        r###"Thematic breaks (58)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###"* Foo
+    // * * *
+    // * Bar
+    // "###, DANGER),
+    //         r###"<ul>
+    // <li>Foo</li>
+    // </ul>
+    // <hr />
+    // <ul>
+    // <li>Bar</li>
+    // </ul>
+    // "###,
+    //         r###"Thematic breaks (59)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- Foo
+- * * *
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>Foo</li>
+<li>
+<hr />
+</li>
+</ul>
+"###,
+        r###"Thematic breaks (60)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"# foo
+## foo
+### foo
+#### foo
+##### foo
+###### foo
+"###,
+            DANGER
+        ),
+        r###"<h1>foo</h1>
+<h2>foo</h2>
+<h3>foo</h3>
+<h4>foo</h4>
+<h5>foo</h5>
+<h6>foo</h6>
+"###,
+        r###"ATX headings (61)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"####### foo
+"###,
+            DANGER
+        ),
+        r###"<p>####### foo</p>
+"###,
+        r###"ATX headings (62)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"#5 bolt
+
+#hashtag
+"###,
+            DANGER
+        ),
+        r###"<p>#5 bolt</p>
+<p>#hashtag</p>
+"###,
+        r###"ATX headings (63)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"\## foo
+"###,
+            DANGER
+        ),
+        r###"<p>## foo</p>
+"###,
+        r###"ATX headings (64)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"# foo *bar* \*baz\*
+"###,
+            DANGER
+        ),
+        r###"<h1>foo <em>bar</em> *baz*</h1>
+"###,
+        r###"ATX headings (65)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"#                  foo
+"###,
+            DANGER
+        ),
+        r###"<h1>foo</h1>
+"###,
+        r###"ATX headings (66)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###" ### foo
+  ## foo
+   # foo
+"###,
+            DANGER
+        ),
+        r###"<h3>foo</h3>
+<h2>foo</h2>
+<h1>foo</h1>
+"###,
+        r###"ATX headings (67)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    # foo
+"###,
+            DANGER
+        ),
+        r###"<pre><code># foo
+</code></pre>
+"###,
+        r###"ATX headings (68)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo
+    # bar
+"###,
+            DANGER
+        ),
+        r###"<p>foo
+# bar</p>
+"###,
+        r###"ATX headings (69)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"## foo ##
+  ###   bar    ###
+"###,
+            DANGER
+        ),
+        r###"<h2>foo</h2>
+<h3>bar</h3>
+"###,
+        r###"ATX headings (70)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"# foo ##################################
+##### foo ##
+"###,
+            DANGER
+        ),
+        r###"<h1>foo</h1>
+<h5>foo</h5>
+"###,
+        r###"ATX headings (71)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"### foo ###
+"###,
+            DANGER
+        ),
+        r###"<h3>foo</h3>
+"###,
+        r###"ATX headings (72)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"### foo ### b
+"###,
+            DANGER
+        ),
+        r###"<h3>foo ### b</h3>
+"###,
+        r###"ATX headings (73)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"# foo#
+"###,
+            DANGER
+        ),
+        r###"<h1>foo#</h1>
+"###,
+        r###"ATX headings (74)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"### foo \###
+## foo #\##
+# foo \#
+"###,
+            DANGER
+        ),
+        r###"<h3>foo ###</h3>
+<h2>foo ###</h2>
+<h1>foo #</h1>
+"###,
+        r###"ATX headings (75)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"****
+## foo
+****
+"###,
+            DANGER
+        ),
+        r###"<hr />
+<h2>foo</h2>
+<hr />
+"###,
+        r###"ATX headings (76)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo bar
+# baz
+Bar foo
+"###,
+            DANGER
+        ),
+        r###"<p>Foo bar</p>
+<h1>baz</h1>
+<p>Bar foo</p>
+"###,
+        r###"ATX headings (77)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"##
+#
+### ###
+"###,
+            DANGER
+        ),
+        r###"<h2></h2>
+<h1></h1>
+<h3></h3>
+"###,
+        r###"ATX headings (78)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo *bar*
+=========
+
+Foo *bar*
+---------
+"###,
+            DANGER
+        ),
+        r###"<h1>Foo <em>bar</em></h1>
+<h2>Foo <em>bar</em></h2>
+"###,
+        r###"Setext headings (79)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo *bar
+baz*
+====
+"###,
+            DANGER
+        ),
+        r###"<h1>Foo <em>bar
+baz</em></h1>
+"###,
+        r###"Setext headings (80)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"  Foo *bar
+baz*
+====
+"###,
+            DANGER
+        ),
+        r###"<h1>Foo <em>bar
+baz</em></h1>
+"###,
+        r###"Setext headings (81)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+-------------------------
+
+Foo
+=
+"###,
+            DANGER
+        ),
+        r###"<h2>Foo</h2>
+<h1>Foo</h1>
+"###,
+        r###"Setext headings (82)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"   Foo
+---
+
+  Foo
+-----
+
+  Foo
+  ===
+"###,
+            DANGER
+        ),
+        r###"<h2>Foo</h2>
+<h2>Foo</h2>
+<h1>Foo</h1>
+"###,
+        r###"Setext headings (83)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    Foo
+    ---
+
+    Foo
+---
+"###,
+            DANGER
+        ),
+        r###"<pre><code>Foo
+---
+
+Foo
+</code></pre>
+<hr />
+"###,
+        r###"Setext headings (84)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+   ----
+"###,
+            DANGER
+        ),
+        r###"<h2>Foo</h2>
+"###,
+        r###"Setext headings (85)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+    ---
+"###,
+            DANGER
+        ),
+        r###"<p>Foo
+---</p>
+"###,
+        r###"Setext headings (86)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+= =
+
+Foo
+--- -
+"###,
+            DANGER
+        ),
+        r###"<p>Foo
+= =</p>
+<p>Foo</p>
+<hr />
+"###,
+        r###"Setext headings (87)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+-----
+"###,
+            DANGER
+        ),
+        r###"<h2>Foo</h2>
+"###,
+        r###"Setext headings (88)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo\
+----
+"###,
+            DANGER
+        ),
+        r###"<h2>Foo\</h2>
+"###,
+        r###"Setext headings (89)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`Foo
+----
+`
+
+<a title="a lot
+---
+of dashes"/>
+"###,
+            DANGER
+        ),
+        r###"<h2>`Foo</h2>
+<p>`</p>
+<h2>&lt;a title=&quot;a lot</h2>
+<p>of dashes&quot;/&gt;</p>
+"###,
+        r###"Setext headings (90)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> Foo
+---
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<p>Foo</p>
+</blockquote>
+<hr />
+"###,
+        r###"Setext headings (91)"###
+    );
+
+    // To do: setext heading interrupt?
+    //     assert_eq!(
+    //         micromark_with_options(r###"> foo
+    // bar
+    // ===
+    // "###, DANGER),
+    //         r###"<blockquote>
+    // <p>foo
+    // bar
+    // ===</p>
+    // </blockquote>
+    // "###,
+    //         r###"Setext headings (92)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- Foo
+---
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>Foo</li>
+</ul>
+<hr />
+"###,
+        r###"Setext headings (93)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+Bar
+---
+"###,
+            DANGER
+        ),
+        r###"<h2>Foo
+Bar</h2>
+"###,
+        r###"Setext headings (94)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"---
+Foo
+---
+Bar
+---
+Baz
+"###,
+            DANGER
+        ),
+        r###"<hr />
+<h2>Foo</h2>
+<h2>Bar</h2>
+<p>Baz</p>
+"###,
+        r###"Setext headings (95)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"
+====
+"###,
+            DANGER
+        ),
+        r###"<p>====</p>
+"###,
+        r###"Setext headings (96)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"---
+---
+"###,
+            DANGER
+        ),
+        r###"<hr />
+<hr />
+"###,
+        r###"Setext headings (97)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- foo
+-----
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>foo</li>
+</ul>
+<hr />
+"###,
+        r###"Setext headings (98)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    foo
+---
+"###,
+            DANGER
+        ),
+        r###"<pre><code>foo
+</code></pre>
+<hr />
+"###,
+        r###"Setext headings (99)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> foo
+-----
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<p>foo</p>
+</blockquote>
+<hr />
+"###,
+        r###"Setext headings (100)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"\> foo
+------
+"###,
+            DANGER
+        ),
+        r###"<h2>&gt; foo</h2>
+"###,
+        r###"Setext headings (101)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+
+bar
+---
+baz
+"###,
+            DANGER
+        ),
+        r###"<p>Foo</p>
+<h2>bar</h2>
+<p>baz</p>
+"###,
+        r###"Setext headings (102)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+bar
+
+---
+
+baz
+"###,
+            DANGER
+        ),
+        r###"<p>Foo
+bar</p>
+<hr />
+<p>baz</p>
+"###,
+        r###"Setext headings (103)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+bar
+* * *
+baz
+"###,
+            DANGER
+        ),
+        r###"<p>Foo
+bar</p>
+<hr />
+<p>baz</p>
+"###,
+        r###"Setext headings (104)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+bar
+\---
+baz
+"###,
+            DANGER
+        ),
+        r###"<p>Foo
+bar
+---
+baz</p>
+"###,
+        r###"Setext headings (105)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    a simple
+      indented code block
+"###,
+            DANGER
+        ),
+        r###"<pre><code>a simple
+  indented code block
+</code></pre>
+"###,
+        r###"Indented code blocks (106)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"  - foo
+
+    bar
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>foo</p>
+<p>bar</p>
+</li>
+</ul>
+"###,
+        r###"Indented code blocks (107)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###"1.  foo
+
+    //     - bar
+    // "###, DANGER),
+    //         r###"<ol>
+    // <li>
+    // <p>foo</p>
+    // <ul>
+    // <li>bar</li>
+    // </ul>
+    // </li>
+    // </ol>
+    // "###,
+    //         r###"Indented code blocks (108)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    <a/>
+    *hi*
+
+    - one
+"###,
+            DANGER
+        ),
+        r###"<pre><code>&lt;a/&gt;
+*hi*
+
+- one
+</code></pre>
+"###,
+        r###"Indented code blocks (109)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    chunk1
+
+    chunk2
+
+
+
+    chunk3
+"###,
+            DANGER
+        ),
+        r###"<pre><code>chunk1
+
+chunk2
+
+
+
+chunk3
+</code></pre>
+"###,
+        r###"Indented code blocks (110)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    chunk1
+
+      chunk2
+"###,
+            DANGER
+        ),
+        r###"<pre><code>chunk1
+
+  chunk2
+</code></pre>
+"###,
+        r###"Indented code blocks (111)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+    bar
+
+"###,
+            DANGER
+        ),
+        r###"<p>Foo
+bar</p>
+"###,
+        r###"Indented code blocks (112)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    foo
+bar
+"###,
+            DANGER
+        ),
+        r###"<pre><code>foo
+</code></pre>
+<p>bar</p>
+"###,
+        r###"Indented code blocks (113)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"# Heading
+    foo
+Heading
+------
+    foo
+----
+"###,
+            DANGER
+        ),
+        r###"<h1>Heading</h1>
+<pre><code>foo
+</code></pre>
+<h2>Heading</h2>
+<pre><code>foo
+</code></pre>
+<hr />
+"###,
+        r###"Indented code blocks (114)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"        foo
+    bar
+"###,
+            DANGER
+        ),
+        r###"<pre><code>    foo
+bar
+</code></pre>
+"###,
+        r###"Indented code blocks (115)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"
+
+    foo
+
+
+"###,
+            DANGER
+        ),
+        r###"<pre><code>foo
+</code></pre>
+"###,
+        r###"Indented code blocks (116)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    foo
+"###,
+            DANGER
+        ),
+        r###"<pre><code>foo
+</code></pre>
+"###,
+        r###"Indented code blocks (117)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"```
+<
+ >
+```
+"###,
+            DANGER
+        ),
+        r###"<pre><code>&lt;
+ &gt;
+</code></pre>
+"###,
+        r###"Fenced code blocks (118)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"~~~
+<
+ >
+~~~
+"###,
+            DANGER
+        ),
+        r###"<pre><code>&lt;
+ &gt;
+</code></pre>
+"###,
+        r###"Fenced code blocks (119)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"``
+foo
+``
+"###,
+            DANGER
+        ),
+        r###"<p><code>foo</code></p>
+"###,
+        r###"Fenced code blocks (120)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"```
+aaa
+~~~
+```
+"###,
+            DANGER
+        ),
+        r###"<pre><code>aaa
+~~~
+</code></pre>
+"###,
+        r###"Fenced code blocks (121)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"~~~
+aaa
+```
+~~~
+"###,
+            DANGER
+        ),
+        r###"<pre><code>aaa
+```
+</code></pre>
+"###,
+        r###"Fenced code blocks (122)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"````
+aaa
+```
+``````
+"###,
+            DANGER
+        ),
+        r###"<pre><code>aaa
+```
+</code></pre>
+"###,
+        r###"Fenced code blocks (123)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"~~~~
+aaa
+~~~
+~~~~
+"###,
+            DANGER
+        ),
+        r###"<pre><code>aaa
+~~~
+</code></pre>
+"###,
+        r###"Fenced code blocks (124)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"```
+"###,
+            DANGER
+        ),
+        r###"<pre><code></code></pre>
+"###,
+        r###"Fenced code blocks (125)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`````
+
+```
+aaa
+"###,
+            DANGER
+        ),
+        r###"<pre><code>
+```
+aaa
+</code></pre>
+"###,
+        r###"Fenced code blocks (126)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> ```
+> aaa
+
+bbb
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<pre><code>aaa
+</code></pre>
+</blockquote>
+<p>bbb</p>
+"###,
+        r###"Fenced code blocks (127)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"```
+
+
+```
+"###,
+            DANGER
+        ),
+        r###"<pre><code>
+
+</code></pre>
+"###,
+        r###"Fenced code blocks (128)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"```
+```
+"###,
+            DANGER
+        ),
+        r###"<pre><code></code></pre>
+"###,
+        r###"Fenced code blocks (129)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###" ```
+ aaa
+aaa
+```
+"###,
+            DANGER
+        ),
+        r###"<pre><code>aaa
+aaa
+</code></pre>
+"###,
+        r###"Fenced code blocks (130)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"  ```
+aaa
+  aaa
+aaa
+  ```
+"###,
+            DANGER
+        ),
+        r###"<pre><code>aaa
+aaa
+aaa
+</code></pre>
+"###,
+        r###"Fenced code blocks (131)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"   ```
+   aaa
+    aaa
+  aaa
+   ```
+"###,
+            DANGER
+        ),
+        r###"<pre><code>aaa
+ aaa
+aaa
+</code></pre>
+"###,
+        r###"Fenced code blocks (132)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    ```
+    aaa
+    ```
+"###,
+            DANGER
+        ),
+        r###"<pre><code>```
+aaa
+```
+</code></pre>
+"###,
+        r###"Fenced code blocks (133)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"```
+aaa
+  ```
+"###,
+            DANGER
+        ),
+        r###"<pre><code>aaa
+</code></pre>
+"###,
+        r###"Fenced code blocks (134)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"   ```
+aaa
+  ```
+"###,
+            DANGER
+        ),
+        r###"<pre><code>aaa
+</code></pre>
+"###,
+        r###"Fenced code blocks (135)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"```
+aaa
+    ```
+"###,
+            DANGER
+        ),
+        r###"<pre><code>aaa
+    ```
+</code></pre>
+"###,
+        r###"Fenced code blocks (136)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"``` ```
+aaa
+"###,
+            DANGER
+        ),
+        r###"<p><code> </code>
+aaa</p>
+"###,
+        r###"Fenced code blocks (137)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"~~~~~~
+aaa
+~~~ ~~
+"###,
+            DANGER
+        ),
+        r###"<pre><code>aaa
+~~~ ~~
+</code></pre>
+"###,
+        r###"Fenced code blocks (138)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo
+```
+bar
+```
+baz
+"###,
+            DANGER
+        ),
+        r###"<p>foo</p>
+<pre><code>bar
+</code></pre>
+<p>baz</p>
+"###,
+        r###"Fenced code blocks (139)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo
+---
+~~~
+bar
+~~~
+# baz
+"###,
+            DANGER
+        ),
+        r###"<h2>foo</h2>
+<pre><code>bar
+</code></pre>
+<h1>baz</h1>
+"###,
+        r###"Fenced code blocks (140)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"```ruby
+def foo(x)
+  return 3
+end
+```
+"###,
+            DANGER
+        ),
+        r###"<pre><code class="language-ruby">def foo(x)
+  return 3
+end
+</code></pre>
+"###,
+        r###"Fenced code blocks (141)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"~~~~    ruby startline=3 $%@#$
+def foo(x)
+  return 3
+end
+~~~~~~~
+"###,
+            DANGER
+        ),
+        r###"<pre><code class="language-ruby">def foo(x)
+  return 3
+end
+</code></pre>
+"###,
+        r###"Fenced code blocks (142)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"````;
+````
+"###,
+            DANGER
+        ),
+        r###"<pre><code class="language-;"></code></pre>
+"###,
+        r###"Fenced code blocks (143)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"``` aa ```
+foo
+"###,
+            DANGER
+        ),
+        r###"<p><code>aa</code>
+foo</p>
+"###,
+        r###"Fenced code blocks (144)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"~~~ aa ``` ~~~
+foo
+~~~
+"###,
+            DANGER
+        ),
+        r###"<pre><code class="language-aa">foo
+</code></pre>
+"###,
+        r###"Fenced code blocks (145)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"```
+``` aaa
+```
+"###,
+            DANGER
+        ),
+        r###"<pre><code>``` aaa
+</code></pre>
+"###,
+        r###"Fenced code blocks (146)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<table><tr><td>
+<pre>
+**Hello**,
+
+_world_.
+</pre>
+</td></tr></table>
+"###,
+            DANGER
+        ),
+        r###"<table><tr><td>
+<pre>
+**Hello**,
+<p><em>world</em>.
+</pre></p>
+</td></tr></table>
+"###,
+        r###"HTML blocks (147)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<table>
+  <tr>
+    <td>
+           hi
+    </td>
+  </tr>
+</table>
+
+okay.
+"###,
+            DANGER
+        ),
+        r###"<table>
+  <tr>
+    <td>
+           hi
+    </td>
+  </tr>
+</table>
+<p>okay.</p>
+"###,
+        r###"HTML blocks (148)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###" <div>
+  *hello*
+         <foo><a>
+"###,
+            DANGER
+        ),
+        r###" <div>
+  *hello*
+         <foo><a>
+"###,
+        r###"HTML blocks (149)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"</div>
+*foo*
+"###,
+            DANGER
+        ),
+        r###"</div>
+*foo*
+"###,
+        r###"HTML blocks (150)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<DIV CLASS="foo">
+
+*Markdown*
+
+</DIV>
+"###,
+            DANGER
+        ),
+        r###"<DIV CLASS="foo">
+<p><em>Markdown</em></p>
+</DIV>
+"###,
+        r###"HTML blocks (151)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<div id="foo"
+  class="bar">
+</div>
+"###,
+            DANGER
+        ),
+        r###"<div id="foo"
+  class="bar">
+</div>
+"###,
+        r###"HTML blocks (152)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<div id="foo" class="bar
+  baz">
+</div>
+"###,
+            DANGER
+        ),
+        r###"<div id="foo" class="bar
+  baz">
+</div>
+"###,
+        r###"HTML blocks (153)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<div>
+*foo*
+
+*bar*
+"###,
+            DANGER
+        ),
+        r###"<div>
+*foo*
+<p><em>bar</em></p>
+"###,
+        r###"HTML blocks (154)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<div id="foo"
+*hi*
+"###,
+            DANGER
+        ),
+        r###"<div id="foo"
+*hi*
+"###,
+        r###"HTML blocks (155)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<div class
+foo
+"###,
+            DANGER
+        ),
+        r###"<div class
+foo
+"###,
+        r###"HTML blocks (156)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<div *???-&&&-<---
+*foo*
+"###,
+            DANGER
+        ),
+        r###"<div *???-&&&-<---
+*foo*
+"###,
+        r###"HTML blocks (157)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<div><a href="bar">*foo*</a></div>
+"###,
+            DANGER
+        ),
+        r###"<div><a href="bar">*foo*</a></div>
+"###,
+        r###"HTML blocks (158)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<table><tr><td>
+foo
+</td></tr></table>
+"###,
+            DANGER
+        ),
+        r###"<table><tr><td>
+foo
+</td></tr></table>
+"###,
+        r###"HTML blocks (159)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<div></div>
+``` c
+int x = 33;
+```
+"###,
+            DANGER
+        ),
+        r###"<div></div>
+``` c
+int x = 33;
+```
+"###,
+        r###"HTML blocks (160)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a href="foo">
+*bar*
+</a>
+"###,
+            DANGER
+        ),
+        r###"<a href="foo">
+*bar*
+</a>
+"###,
+        r###"HTML blocks (161)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<Warning>
+*bar*
+</Warning>
+"###,
+            DANGER
+        ),
+        r###"<Warning>
+*bar*
+</Warning>
+"###,
+        r###"HTML blocks (162)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<i class="foo">
+*bar*
+</i>
+"###,
+            DANGER
+        ),
+        r###"<i class="foo">
+*bar*
+</i>
+"###,
+        r###"HTML blocks (163)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"</ins>
+*bar*
+"###,
+            DANGER
+        ),
+        r###"</ins>
+*bar*
+"###,
+        r###"HTML blocks (164)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<del>
+*foo*
+</del>
+"###,
+            DANGER
+        ),
+        r###"<del>
+*foo*
+</del>
+"###,
+        r###"HTML blocks (165)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<del>
+
+*foo*
+
+</del>
+"###,
+            DANGER
+        ),
+        r###"<del>
+<p><em>foo</em></p>
+</del>
+"###,
+        r###"HTML blocks (166)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<del>*foo*</del>
+"###,
+            DANGER
+        ),
+        r###"<p><del><em>foo</em></del></p>
+"###,
+        r###"HTML blocks (167)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<pre language="haskell"><code>
+import Text.HTML.TagSoup
+
+main :: IO ()
+main = print $ parseTags tags
+</code></pre>
+okay
+"###,
+            DANGER
+        ),
+        r###"<pre language="haskell"><code>
+import Text.HTML.TagSoup
+
+main :: IO ()
+main = print $ parseTags tags
+</code></pre>
+<p>okay</p>
+"###,
+        r###"HTML blocks (168)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<script type="text/javascript">
+// JavaScript example
+
+document.getElementById("demo").innerHTML = "Hello JavaScript!";
+</script>
+okay
+"###,
+            DANGER
+        ),
+        r###"<script type="text/javascript">
+// JavaScript example
+
+document.getElementById("demo").innerHTML = "Hello JavaScript!";
+</script>
+<p>okay</p>
+"###,
+        r###"HTML blocks (169)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<textarea>
+
+*foo*
+
+_bar_
+
+</textarea>
+"###,
+            DANGER
+        ),
+        r###"<textarea>
+
+*foo*
+
+_bar_
+
+</textarea>
+"###,
+        r###"HTML blocks (170)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<style
+  type="text/css">
+h1 {color:red;}
+
+p {color:blue;}
+</style>
+okay
+"###,
+            DANGER
+        ),
+        r###"<style
+  type="text/css">
+h1 {color:red;}
+
+p {color:blue;}
+</style>
+<p>okay</p>
+"###,
+        r###"HTML blocks (171)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<style
+  type="text/css">
+
+foo
+"###,
+            DANGER
+        ),
+        r###"<style
+  type="text/css">
+
+foo
+"###,
+        r###"HTML blocks (172)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> <div>
+> foo
+
+bar
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<div>
+foo
+</blockquote>
+<p>bar</p>
+"###,
+        r###"HTML blocks (173)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###"- <div>
+    // - foo
+    // "###, DANGER),
+    //         r###"<ul>
+    // <li>
+    // <div>
+    // </li>
+    // <li>foo</li>
+    // </ul>
+    // "###,
+    //         r###"HTML blocks (174)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<style>p{color:red;}</style>
+*foo*
+"###,
+            DANGER
+        ),
+        r###"<style>p{color:red;}</style>
+<p><em>foo</em></p>
+"###,
+        r###"HTML blocks (175)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<!-- foo -->*bar*
+*baz*
+"###,
+            DANGER
+        ),
+        r###"<!-- foo -->*bar*
+<p><em>baz</em></p>
+"###,
+        r###"HTML blocks (176)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<script>
+foo
+</script>1. *bar*
+"###,
+            DANGER
+        ),
+        r###"<script>
+foo
+</script>1. *bar*
+"###,
+        r###"HTML blocks (177)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<!-- Foo
+
+bar
+   baz -->
+okay
+"###,
+            DANGER
+        ),
+        r###"<!-- Foo
+
+bar
+   baz -->
+<p>okay</p>
+"###,
+        r###"HTML blocks (178)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<?php
+
+  echo '>';
+
+?>
+okay
+"###,
+            DANGER
+        ),
+        r###"<?php
+
+  echo '>';
+
+?>
+<p>okay</p>
+"###,
+        r###"HTML blocks (179)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<!DOCTYPE html>
+"###,
+            DANGER
+        ),
+        r###"<!DOCTYPE html>
+"###,
+        r###"HTML blocks (180)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<![CDATA[
+function matchwo(a,b)
+{
+  if (a < b && a < 0) then {
+    return 1;
+
+  } else {
+
+    return 0;
+  }
+}
+]]>
+okay
+"###,
+            DANGER
+        ),
+        r###"<![CDATA[
+function matchwo(a,b)
+{
+  if (a < b && a < 0) then {
+    return 1;
+
+  } else {
+
+    return 0;
+  }
+}
+]]>
+<p>okay</p>
+"###,
+        r###"HTML blocks (181)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"  <!-- foo -->
+
+    <!-- foo -->
+"###,
+            DANGER
+        ),
+        r###"  <!-- foo -->
+<pre><code>&lt;!-- foo --&gt;
+</code></pre>
+"###,
+        r###"HTML blocks (182)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"  <div>
+
+    <div>
+"###,
+            DANGER
+        ),
+        r###"  <div>
+<pre><code>&lt;div&gt;
+</code></pre>
+"###,
+        r###"HTML blocks (183)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+<div>
+bar
+</div>
+"###,
+            DANGER
+        ),
+        r###"<p>Foo</p>
+<div>
+bar
+</div>
+"###,
+        r###"HTML blocks (184)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<div>
+bar
+</div>
+*foo*
+"###,
+            DANGER
+        ),
+        r###"<div>
+bar
+</div>
+*foo*
+"###,
+        r###"HTML blocks (185)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+<a href="bar">
+baz
+"###,
+            DANGER
+        ),
+        r###"<p>Foo
+<a href="bar">
+baz</p>
+"###,
+        r###"HTML blocks (186)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<div>
+
+*Emphasized* text.
+
+</div>
+"###,
+            DANGER
+        ),
+        r###"<div>
+<p><em>Emphasized</em> text.</p>
+</div>
+"###,
+        r###"HTML blocks (187)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<div>
+*Emphasized* text.
+</div>
+"###,
+            DANGER
+        ),
+        r###"<div>
+*Emphasized* text.
+</div>
+"###,
+        r###"HTML blocks (188)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<table>
+
+<tr>
+
+<td>
+Hi
+</td>
+
+</tr>
+
+</table>
+"###,
+            DANGER
+        ),
+        r###"<table>
+<tr>
+<td>
+Hi
+</td>
+</tr>
+</table>
+"###,
+        r###"HTML blocks (189)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<table>
+
+  <tr>
+
+    <td>
+      Hi
+    </td>
+
+  </tr>
+
+</table>
+"###,
+            DANGER
+        ),
+        r###"<table>
+  <tr>
+<pre><code>&lt;td&gt;
+  Hi
+&lt;/td&gt;
+</code></pre>
+  </tr>
+</table>
+"###,
+        r###"HTML blocks (190)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: /url "title"
+
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title">foo</a></p>
+"###,
+        r###"Link reference definitions (191)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"   [foo]:
+      /url
+           'the title'
+
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="the title">foo</a></p>
+"###,
+        r###"Link reference definitions (192)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[Foo*bar\]]:my_(url) 'title (with parens)'
+
+[Foo*bar\]]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="my_(url)" title="title (with parens)">Foo*bar]</a></p>
+"###,
+        r###"Link reference definitions (193)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[Foo bar]:
+<my url>
+'title'
+
+[Foo bar]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="my%20url" title="title">Foo bar</a></p>
+"###,
+        r###"Link reference definitions (194)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: /url '
+title
+line1
+line2
+'
+
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="
+title
+line1
+line2
+">foo</a></p>
+"###,
+        r###"Link reference definitions (195)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: /url 'title
+
+with blank line'
+
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<p>[foo]: /url 'title</p>
+<p>with blank line'</p>
+<p>[foo]</p>
+"###,
+        r###"Link reference definitions (196)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]:
+/url
+
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url">foo</a></p>
+"###,
+        r###"Link reference definitions (197)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]:
+
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<p>[foo]:</p>
+<p>[foo]</p>
+"###,
+        r###"Link reference definitions (198)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: <>
+
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="">foo</a></p>
+"###,
+        r###"Link reference definitions (199)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: <bar>(baz)
+
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<p>[foo]: <bar>(baz)</p>
+<p>[foo]</p>
+"###,
+        r###"Link reference definitions (200)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: /url\bar\*baz "foo\"bar\baz"
+
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url%5Cbar*baz" title="foo&quot;bar\baz">foo</a></p>
+"###,
+        r###"Link reference definitions (201)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]
+
+[foo]: url
+"###,
+            DANGER
+        ),
+        r###"<p><a href="url">foo</a></p>
+"###,
+        r###"Link reference definitions (202)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]
+
+[foo]: first
+[foo]: second
+"###,
+            DANGER
+        ),
+        r###"<p><a href="first">foo</a></p>
+"###,
+        r###"Link reference definitions (203)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[FOO]: /url
+
+[Foo]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url">Foo</a></p>
+"###,
+        r###"Link reference definitions (204)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[ΑΓΩ]: /φου
+
+[αγω]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/%CF%86%CE%BF%CF%85">αγω</a></p>
+"###,
+        r###"Link reference definitions (205)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: /url
+"###,
+            DANGER
+        ),
+        r###""###,
+        r###"Link reference definitions (206)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[
+foo
+]: /url
+bar
+"###,
+            DANGER
+        ),
+        r###"<p>bar</p>
+"###,
+        r###"Link reference definitions (207)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: /url "title" ok
+"###,
+            DANGER
+        ),
+        r###"<p>[foo]: /url &quot;title&quot; ok</p>
+"###,
+        r###"Link reference definitions (208)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: /url
+"title" ok
+"###,
+            DANGER
+        ),
+        r###"<p>&quot;title&quot; ok</p>
+"###,
+        r###"Link reference definitions (209)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    [foo]: /url "title"
+
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<pre><code>[foo]: /url &quot;title&quot;
+</code></pre>
+<p>[foo]</p>
+"###,
+        r###"Link reference definitions (210)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"```
+[foo]: /url
+```
+
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<pre><code>[foo]: /url
+</code></pre>
+<p>[foo]</p>
+"###,
+        r###"Link reference definitions (211)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo
+[bar]: /baz
+
+[bar]
+"###,
+            DANGER
+        ),
+        r###"<p>Foo
+[bar]: /baz</p>
+<p>[bar]</p>
+"###,
+        r###"Link reference definitions (212)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"# [Foo]
+[foo]: /url
+> bar
+"###,
+            DANGER
+        ),
+        r###"<h1><a href="/url">Foo</a></h1>
+<blockquote>
+<p>bar</p>
+</blockquote>
+"###,
+        r###"Link reference definitions (213)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: /url
+bar
+===
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<h1>bar</h1>
+<p><a href="/url">foo</a></p>
+"###,
+        r###"Link reference definitions (214)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: /url
+===
+[foo]
+"###,
+            DANGER
+        ),
+        r###"<p>===
+<a href="/url">foo</a></p>
+"###,
+        r###"Link reference definitions (215)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: /foo-url "foo"
+[bar]: /bar-url
+  "bar"
+[baz]: /baz-url
+
+[foo],
+[bar],
+[baz]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/foo-url" title="foo">foo</a>,
+<a href="/bar-url" title="bar">bar</a>,
+<a href="/baz-url">baz</a></p>
+"###,
+        r###"Link reference definitions (216)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###"[foo]
+
+    // > [foo]: /url
+    // "###, DANGER),
+    //         r###"<p><a href="/url">foo</a></p>
+    // <blockquote>
+    // </blockquote>
+    // "###,
+    //         r###"Link reference definitions (217)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"aaa
+
+bbb
+"###,
+            DANGER
+        ),
+        r###"<p>aaa</p>
+<p>bbb</p>
+"###,
+        r###"Paragraphs (218)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"aaa
+bbb
+
+ccc
+ddd
+"###,
+            DANGER
+        ),
+        r###"<p>aaa
+bbb</p>
+<p>ccc
+ddd</p>
+"###,
+        r###"Paragraphs (219)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"aaa
+
+
+bbb
+"###,
+            DANGER
+        ),
+        r###"<p>aaa</p>
+<p>bbb</p>
+"###,
+        r###"Paragraphs (220)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"  aaa
+ bbb
+"###,
+            DANGER
+        ),
+        r###"<p>aaa
+bbb</p>
+"###,
+        r###"Paragraphs (221)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"aaa
+             bbb
+                                       ccc
+"###,
+            DANGER
+        ),
+        r###"<p>aaa
+bbb
+ccc</p>
+"###,
+        r###"Paragraphs (222)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"   aaa
+bbb
+"###,
+            DANGER
+        ),
+        r###"<p>aaa
+bbb</p>
+"###,
+        r###"Paragraphs (223)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    aaa
+bbb
+"###,
+            DANGER
+        ),
+        r###"<pre><code>aaa
+</code></pre>
+<p>bbb</p>
+"###,
+        r###"Paragraphs (224)"###
+    );
+
+    // To do: whitespace trimming of editor likely?
+    //     assert_eq!(
+    //         micromark_with_options(r###"aaa
+    // bbb
+    // "###, DANGER),
+    //         r###"<p>aaa<br />
+    // bbb</p>
+    // "###,
+    //         r###"Paragraphs (225)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"
+
+aaa
+
+
+# aaa
+
+
+"###,
+            DANGER
+        ),
+        r###"<p>aaa</p>
+<h1>aaa</h1>
+"###,
+        r###"Blank lines (226)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> # Foo
+> bar
+> baz
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<h1>Foo</h1>
+<p>bar
+baz</p>
+</blockquote>
+"###,
+        r###"Block quotes (227)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"># Foo
+>bar
+> baz
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<h1>Foo</h1>
+<p>bar
+baz</p>
+</blockquote>
+"###,
+        r###"Block quotes (228)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"   > # Foo
+   > bar
+ > baz
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<h1>Foo</h1>
+<p>bar
+baz</p>
+</blockquote>
+"###,
+        r###"Block quotes (229)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    > # Foo
+    > bar
+    > baz
+"###,
+            DANGER
+        ),
+        r###"<pre><code>&gt; # Foo
+&gt; bar
+&gt; baz
+</code></pre>
+"###,
+        r###"Block quotes (230)"###
+    );
+
+    // To do: whitespace trimming of editor likely?
+    //     assert_eq!(
+    //         micromark_with_options(r###"> # Foo
+    // > bar
+    // baz
+    // "###, DANGER),
+    //         r###"<blockquote>
+    // <h1>Foo</h1>
+    // <p>bar
+    // baz</p>
+    // </blockquote>
+    // "###,
+    //         r###"Block quotes (231)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> bar
+baz
+> foo
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<p>bar
+baz
+foo</p>
+</blockquote>
+"###,
+        r###"Block quotes (232)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> foo
+---
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<p>foo</p>
+</blockquote>
+<hr />
+"###,
+        r###"Block quotes (233)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###"> - foo
+    // - bar
+    // "###, DANGER),
+    //         r###"<blockquote>
+    // <ul>
+    // <li>foo</li>
+    // </ul>
+    // </blockquote>
+    // <ul>
+    // <li>bar</li>
+    // </ul>
+    // "###,
+    //         r###"Block quotes (234)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###">     foo
+    bar
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<pre><code>foo
+</code></pre>
+</blockquote>
+<pre><code>bar
+</code></pre>
+"###,
+        r###"Block quotes (235)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> ```
+foo
+```
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<pre><code></code></pre>
+</blockquote>
+<p>foo</p>
+<pre><code></code></pre>
+"###,
+        r###"Block quotes (236)"###
+    );
+
+    // To do: some bug with laziness.
+    //     assert_eq!(
+    //         micromark_with_options(r###"> foo
+    //     - bar
+    // "###, DANGER),
+    //         r###"<blockquote>
+    // <p>foo
+    // - bar</p>
+    // </blockquote>
+    // "###,
+    //         r###"Block quotes (237)"###
+    // );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###">
+    // "###, DANGER),
+    //         r###"<blockquote>
+    // </blockquote>
+    // "###,
+    //         r###"Block quotes (238)"###
+    // );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###">
+    // >
+    // >
+    // "###, DANGER),
+    //         r###"<blockquote>
+    // </blockquote>
+    // "###,
+    //         r###"Block quotes (239)"###
+    // );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###">
+    // > foo
+    // >
+    // "###, DANGER),
+    //         r###"<blockquote>
+    // <p>foo</p>
+    // </blockquote>
+    // "###,
+    //         r###"Block quotes (240)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> foo
+
+> bar
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<p>foo</p>
+</blockquote>
+<blockquote>
+<p>bar</p>
+</blockquote>
+"###,
+        r###"Block quotes (241)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> foo
+> bar
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<p>foo
+bar</p>
+</blockquote>
+"###,
+        r###"Block quotes (242)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> foo
+>
+> bar
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<p>foo</p>
+<p>bar</p>
+</blockquote>
+"###,
+        r###"Block quotes (243)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo
+> bar
+"###,
+            DANGER
+        ),
+        r###"<p>foo</p>
+<blockquote>
+<p>bar</p>
+</blockquote>
+"###,
+        r###"Block quotes (244)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> aaa
+***
+> bbb
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<p>aaa</p>
+</blockquote>
+<hr />
+<blockquote>
+<p>bbb</p>
+</blockquote>
+"###,
+        r###"Block quotes (245)"###
+    );
+
+    // To do: some bug with laziness.
+    //     assert_eq!(
+    //         micromark_with_options(r###"> bar
+    // baz
+    // "###, DANGER),
+    //         r###"<blockquote>
+    // <p>bar
+    // baz</p>
+    // </blockquote>
+    // "###,
+    //         r###"Block quotes (246)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> bar
+
+baz
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<p>bar</p>
+</blockquote>
+<p>baz</p>
+"###,
+        r###"Block quotes (247)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"> bar
+>
+baz
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<p>bar</p>
+</blockquote>
+<p>baz</p>
+"###,
+        r###"Block quotes (248)"###
+    );
+
+    // To do: some bug with laziness.
+    //     assert_eq!(
+    //         micromark_with_options(r###"> > > foo
+    // bar
+    // "###, DANGER),
+    //         r###"<blockquote>
+    // <blockquote>
+    // <blockquote>
+    // <p>foo
+    // bar</p>
+    // </blockquote>
+    // </blockquote>
+    // </blockquote>
+    // "###,
+    //         r###"Block quotes (249)"###
+    // );
+
+    // To do: some bug with laziness.
+    //     assert_eq!(
+    //         micromark_with_options(r###">>> foo
+    // > bar
+    // >>baz
+    // "###, DANGER),
+    //         r###"<blockquote>
+    // <blockquote>
+    // <blockquote>
+    // <p>foo
+    // bar
+    // baz</p>
+    // </blockquote>
+    // </blockquote>
+    // </blockquote>
+    // "###,
+    //         r###"Block quotes (250)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###">     code
+
+>    not code
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<pre><code>code
+</code></pre>
+</blockquote>
+<blockquote>
+<p>not code</p>
+</blockquote>
+"###,
+        r###"Block quotes (251)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"A paragraph
+with two lines.
+
+    indented code
+
+> A block quote.
+"###,
+            DANGER
+        ),
+        r###"<p>A paragraph
+with two lines.</p>
+<pre><code>indented code
+</code></pre>
+<blockquote>
+<p>A block quote.</p>
+</blockquote>
+"###,
+        r###"List items (252)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"1.  A paragraph
+    with two lines.
+
+        indented code
+
+    > A block quote.
+"###,
+            DANGER
+        ),
+        r###"<ol>
+<li>
+<p>A paragraph
+with two lines.</p>
+<pre><code>indented code
+</code></pre>
+<blockquote>
+<p>A block quote.</p>
+</blockquote>
+</li>
+</ol>
+"###,
+        r###"List items (253)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- one
+
+ two
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>one</li>
+</ul>
+<p>two</p>
+"###,
+        r###"List items (254)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- one
+
+  two
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>one</p>
+<p>two</p>
+</li>
+</ul>
+"###,
+        r###"List items (255)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###" -    one
+
+     two
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>one</li>
+</ul>
+<pre><code> two
+</code></pre>
+"###,
+        r###"List items (256)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###" -    one
+
+      two
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>one</p>
+<p>two</p>
+</li>
+</ul>
+"###,
+        r###"List items (257)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"   > > 1.  one
+>>
+>>     two
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<blockquote>
+<ol>
+<li>
+<p>one</p>
+<p>two</p>
+</li>
+</ol>
+</blockquote>
+</blockquote>
+"###,
+        r###"List items (258)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###">>- one
+>>
+  >  > two
+"###,
+            DANGER
+        ),
+        r###"<blockquote>
+<blockquote>
+<ul>
+<li>one</li>
+</ul>
+<p>two</p>
+</blockquote>
+</blockquote>
+"###,
+        r###"List items (259)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"-one
+
+2.two
+"###,
+            DANGER
+        ),
+        r###"<p>-one</p>
+<p>2.two</p>
+"###,
+        r###"List items (260)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- foo
+
+
+  bar
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>foo</p>
+<p>bar</p>
+</li>
+</ul>
+"###,
+        r###"List items (261)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"1.  foo
+
+    ```
+    bar
+    ```
+
+    baz
+
+    > bam
+"###,
+            DANGER
+        ),
+        r###"<ol>
+<li>
+<p>foo</p>
+<pre><code>bar
+</code></pre>
+<p>baz</p>
+<blockquote>
+<p>bam</p>
+</blockquote>
+</li>
+</ol>
+"###,
+        r###"List items (262)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- Foo
+
+      bar
+
+
+      baz
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>Foo</p>
+<pre><code>bar
+
+
+baz
+</code></pre>
+</li>
+</ul>
+"###,
+        r###"List items (263)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###"123456789. ok
+    // "###, DANGER),
+    //         r###"<ol start="123456789">
+    // <li>ok</li>
+    // </ol>
+    // "###,
+    //         r###"List items (264)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"1234567890. not ok
+"###,
+            DANGER
+        ),
+        r###"<p>1234567890. not ok</p>
+"###,
+        r###"List items (265)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###"0. ok
+    // "###, DANGER),
+    //         r###"<ol start="0">
+    // <li>ok</li>
+    // </ol>
+    // "###,
+    //         r###"List items (266)"###
+    // );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###"003. ok
+    // "###, DANGER),
+    //         r###"<ol start="3">
+    // <li>ok</li>
+    // </ol>
+    // "###,
+    //         r###"List items (267)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"-1. not ok
+"###,
+            DANGER
+        ),
+        r###"<p>-1. not ok</p>
+"###,
+        r###"List items (268)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- foo
+
+      bar
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>foo</p>
+<pre><code>bar
+</code></pre>
+</li>
+</ul>
+"###,
+        r###"List items (269)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"  10.  foo
+
+           bar
+"###,
+            DANGER
+        ),
+        r###"<ol start="10">
+<li>
+<p>foo</p>
+<pre><code>bar
+</code></pre>
+</li>
+</ol>
+"###,
+        r###"List items (270)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    indented code
+
+paragraph
+
+    more code
+"###,
+            DANGER
+        ),
+        r###"<pre><code>indented code
+</code></pre>
+<p>paragraph</p>
+<pre><code>more code
+</code></pre>
+"###,
+        r###"List items (271)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"1.     indented code
+
+   paragraph
+
+       more code
+"###,
+            DANGER
+        ),
+        r###"<ol>
+<li>
+<pre><code>indented code
+</code></pre>
+<p>paragraph</p>
+<pre><code>more code
+</code></pre>
+</li>
+</ol>
+"###,
+        r###"List items (272)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"1.      indented code
+
+   paragraph
+
+       more code
+"###,
+            DANGER
+        ),
+        r###"<ol>
+<li>
+<pre><code> indented code
+</code></pre>
+<p>paragraph</p>
+<pre><code>more code
+</code></pre>
+</li>
+</ol>
+"###,
+        r###"List items (273)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"   foo
+
+bar
+"###,
+            DANGER
+        ),
+        r###"<p>foo</p>
+<p>bar</p>
+"###,
+        r###"List items (274)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"-    foo
+
+  bar
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>foo</li>
+</ul>
+<p>bar</p>
+"###,
+        r###"List items (275)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"-  foo
+
+   bar
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>foo</p>
+<p>bar</p>
+</li>
+</ul>
+"###,
+        r###"List items (276)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"-
+  foo
+-
+  ```
+  bar
+  ```
+-
+      baz
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>foo</li>
+<li>
+<pre><code>bar
+</code></pre>
+</li>
+<li>
+<pre><code>baz
+</code></pre>
+</li>
+</ul>
+"###,
+        r###"List items (277)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(r###"-
+    //   foo
+    // "###, DANGER),
+    //         r###"<ul>
+    // <li>foo</li>
+    // </ul>
+    // "###,
+    //         r###"List items (278)"###
+    // );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"-
+
+  foo
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li></li>
+</ul>
+<p>foo</p>
+"###,
+        r###"List items (279)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- foo
+    // -
+    // - bar
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>foo</li>
+    // <li></li>
+    // <li>bar</li>
+    // </ul>
+    // "###,
+    //         r###"List items (280)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- foo
+    // -
+    // - bar
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>foo</li>
+    // <li></li>
+    // <li>bar</li>
+    // </ul>
+    // "###,
+    //         r###"List items (281)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"1. foo
+    // 2.
+    // 3. bar
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ol>
+    // <li>foo</li>
+    // <li></li>
+    // <li>bar</li>
+    // </ol>
+    // "###,
+    //         r###"List items (282)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"*
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li></li>
+    // </ul>
+    // "###,
+    //         r###"List items (283)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo
+*
+
+foo
+1.
+"###,
+            DANGER
+        ),
+        r###"<p>foo
+*</p>
+<p>foo
+1.</p>
+"###,
+        r###"List items (284)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###" 1.  A paragraph
+     with two lines.
+
+         indented code
+
+     > A block quote.
+"###,
+            DANGER
+        ),
+        r###"<ol>
+<li>
+<p>A paragraph
+with two lines.</p>
+<pre><code>indented code
+</code></pre>
+<blockquote>
+<p>A block quote.</p>
+</blockquote>
+</li>
+</ol>
+"###,
+        r###"List items (285)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"  1.  A paragraph
+      with two lines.
+
+          indented code
+
+      > A block quote.
+"###,
+            DANGER
+        ),
+        r###"<ol>
+<li>
+<p>A paragraph
+with two lines.</p>
+<pre><code>indented code
+</code></pre>
+<blockquote>
+<p>A block quote.</p>
+</blockquote>
+</li>
+</ol>
+"###,
+        r###"List items (286)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"   1.  A paragraph
+       with two lines.
+
+           indented code
+
+       > A block quote.
+"###,
+            DANGER
+        ),
+        r###"<ol>
+<li>
+<p>A paragraph
+with two lines.</p>
+<pre><code>indented code
+</code></pre>
+<blockquote>
+<p>A block quote.</p>
+</blockquote>
+</li>
+</ol>
+"###,
+        r###"List items (287)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"    1.  A paragraph
+        with two lines.
+
+            indented code
+
+        > A block quote.
+"###,
+            DANGER
+        ),
+        r###"<pre><code>1.  A paragraph
+    with two lines.
+
+        indented code
+
+    &gt; A block quote.
+</code></pre>
+"###,
+        r###"List items (288)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"  1.  A paragraph
+with two lines.
+
+          indented code
+
+      > A block quote.
+"###,
+            DANGER
+        ),
+        r###"<ol>
+<li>
+<p>A paragraph
+with two lines.</p>
+<pre><code>indented code
+</code></pre>
+<blockquote>
+<p>A block quote.</p>
+</blockquote>
+</li>
+</ol>
+"###,
+        r###"List items (289)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"  1.  A paragraph
+    //     with two lines.
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ol>
+    // <li>A paragraph
+    // with two lines.</li>
+    // </ol>
+    // "###,
+    //         r###"List items (290)"###
+    //     );
+
+    // To do: some bug with laziness.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"> 1. > Blockquote
+    // continued here.
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<blockquote>
+    // <ol>
+    // <li>
+    // <blockquote>
+    // <p>Blockquote
+    // continued here.</p>
+    // </blockquote>
+    // </li>
+    // </ol>
+    // </blockquote>
+    // "###,
+    //         r###"List items (291)"###
+    //     );
+
+    // To do: some bug with laziness.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"> 1. > Blockquote
+    // > continued here.
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<blockquote>
+    // <ol>
+    // <li>
+    // <blockquote>
+    // <p>Blockquote
+    // continued here.</p>
+    // </blockquote>
+    // </li>
+    // </ol>
+    // </blockquote>
+    // "###,
+    //         r###"List items (292)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- foo
+    //   - bar
+    //     - baz
+    //       - boo
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>foo
+    // <ul>
+    // <li>bar
+    // <ul>
+    // <li>baz
+    // <ul>
+    // <li>boo</li>
+    // </ul>
+    // </li>
+    // </ul>
+    // </li>
+    // </ul>
+    // </li>
+    // </ul>
+    // "###,
+    //         r###"List items (293)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- foo
+    //  - bar
+    //   - baz
+    //    - boo
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>foo</li>
+    // <li>bar</li>
+    // <li>baz</li>
+    // <li>boo</li>
+    // </ul>
+    // "###,
+    //         r###"List items (294)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"10) foo
+    //     - bar
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ol start="10">
+    // <li>foo
+    // <ul>
+    // <li>bar</li>
+    // </ul>
+    // </li>
+    // </ol>
+    // "###,
+    //         r###"List items (295)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"10) foo
+    //    - bar
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ol start="10">
+    // <li>foo</li>
+    // </ol>
+    // <ul>
+    // <li>bar</li>
+    // </ul>
+    // "###,
+    //         r###"List items (296)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- - foo
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>
+    // <ul>
+    // <li>foo</li>
+    // </ul>
+    // </li>
+    // </ul>
+    // "###,
+    //         r###"List items (297)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"1. - 2. foo
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ol>
+    // <li>
+    // <ul>
+    // <li>
+    // <ol start="2">
+    // <li>foo</li>
+    // </ol>
+    // </li>
+    // </ul>
+    // </li>
+    // </ol>
+    // "###,
+    //         r###"List items (298)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- # Foo
+    // - Bar
+    //   ---
+    //   baz
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>
+    // <h1>Foo</h1>
+    // </li>
+    // <li>
+    // <h2>Bar</h2>
+    // baz</li>
+    // </ul>
+    // "###,
+    //         r###"List items (299)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- foo
+    // - bar
+    // + baz
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>foo</li>
+    // <li>bar</li>
+    // </ul>
+    // <ul>
+    // <li>baz</li>
+    // </ul>
+    // "###,
+    //         r###"Lists (300)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"1. foo
+    // 2. bar
+    // 3) baz
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ol>
+    // <li>foo</li>
+    // <li>bar</li>
+    // </ol>
+    // <ol start="3">
+    // <li>baz</li>
+    // </ol>
+    // "###,
+    //         r###"Lists (301)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"Foo
+    // - bar
+    // - baz
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<p>Foo</p>
+    // <ul>
+    // <li>bar</li>
+    // <li>baz</li>
+    // </ul>
+    // "###,
+    //         r###"Lists (302)"###
+    //     );
+
+    // To do: some bug with interrupting.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"The number of windows in my house is
+    // 14.  The number of doors is 6.
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<p>The number of windows in my house is
+    // 14.  The number of doors is 6.</p>
+    // "###,
+    //         r###"Lists (303)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"The number of windows in my house is
+    // 1.  The number of doors is 6.
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<p>The number of windows in my house is</p>
+    // <ol>
+    // <li>The number of doors is 6.</li>
+    // </ol>
+    // "###,
+    //         r###"Lists (304)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- foo
+
+- bar
+
+
+- baz
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>foo</p>
+</li>
+<li>
+<p>bar</p>
+</li>
+<li>
+<p>baz</p>
+</li>
+</ul>
+"###,
+        r###"Lists (305)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- foo
+  - bar
+    - baz
+
+
+      bim
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>foo
+<ul>
+<li>bar
+<ul>
+<li>
+<p>baz</p>
+<p>bim</p>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+"###,
+        r###"Lists (306)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- foo
+    // - bar
+
+    // <!-- -->
+
+    // - baz
+    // - bim
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>foo</li>
+    // <li>bar</li>
+    // </ul>
+    // <!-- -->
+    // <ul>
+    // <li>baz</li>
+    // <li>bim</li>
+    // </ul>
+    // "###,
+    //         r###"Lists (307)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"-   foo
+
+    notcode
+
+-   foo
+
+<!-- -->
+
+    code
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>foo</p>
+<p>notcode</p>
+</li>
+<li>
+<p>foo</p>
+</li>
+</ul>
+<!-- -->
+<pre><code>code
+</code></pre>
+"###,
+        r###"Lists (308)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- a
+    //  - b
+    //   - c
+    //    - d
+    //   - e
+    //  - f
+    // - g
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>a</li>
+    // <li>b</li>
+    // <li>c</li>
+    // <li>d</li>
+    // <li>e</li>
+    // <li>f</li>
+    // <li>g</li>
+    // </ul>
+    // "###,
+    //         r###"Lists (309)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"1. a
+
+  2. b
+
+   3. c
+"###,
+            DANGER
+        ),
+        r###"<ol>
+<li>
+<p>a</p>
+</li>
+<li>
+<p>b</p>
+</li>
+<li>
+<p>c</p>
+</li>
+</ol>
+"###,
+        r###"Lists (310)"###
+    );
+
+    // To do: some bug with interrupting.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- a
+    //  - b
+    //   - c
+    //    - d
+    //     - e
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>a</li>
+    // <li>b</li>
+    // <li>c</li>
+    // <li>d
+    // - e</li>
+    // </ul>
+    // "###,
+    //         r###"Lists (311)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"1. a
+
+  2. b
+
+    3. c
+"###,
+            DANGER
+        ),
+        r###"<ol>
+<li>
+<p>a</p>
+</li>
+<li>
+<p>b</p>
+</li>
+</ol>
+<pre><code>3. c
+</code></pre>
+"###,
+        r###"Lists (312)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- a
+- b
+
+- c
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>a</p>
+</li>
+<li>
+<p>b</p>
+</li>
+<li>
+<p>c</p>
+</li>
+</ul>
+"###,
+        r###"Lists (313)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"* a
+*
+
+* c
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>a</p>
+</li>
+<li></li>
+<li>
+<p>c</p>
+</li>
+</ul>
+"###,
+        r###"Lists (314)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- a
+- b
+
+  c
+- d
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>a</p>
+</li>
+<li>
+<p>b</p>
+<p>c</p>
+</li>
+<li>
+<p>d</p>
+</li>
+</ul>
+"###,
+        r###"Lists (315)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"- a
+- b
+
+  [ref]: /url
+- d
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>a</p>
+</li>
+<li>
+<p>b</p>
+</li>
+<li>
+<p>d</p>
+</li>
+</ul>
+"###,
+        r###"Lists (316)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- a
+    // - ```
+    //   b
+
+    //   ```
+    // - c
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>a</li>
+    // <li>
+    // <pre><code>b
+
+    // </code></pre>
+    // </li>
+    // <li>c</li>
+    // </ul>
+    // "###,
+    //         r###"Lists (317)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- a
+    //   - b
+
+    //     c
+    // - d
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>a
+    // <ul>
+    // <li>
+    // <p>b</p>
+    // <p>c</p>
+    // </li>
+    // </ul>
+    // </li>
+    // <li>d</li>
+    // </ul>
+    // "###,
+    //         r###"Lists (318)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"* a
+    //   > b
+    //   >
+    // * c
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>a
+    // <blockquote>
+    // <p>b</p>
+    // </blockquote>
+    // </li>
+    // <li>c</li>
+    // </ul>
+    // "###,
+    //         r###"Lists (319)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- a
+    //   > b
+    //   ```
+    //   c
+    //   ```
+    // - d
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>a
+    // <blockquote>
+    // <p>b</p>
+    // </blockquote>
+    // <pre><code>c
+    // </code></pre>
+    // </li>
+    // <li>d</li>
+    // </ul>
+    // "###,
+    //         r###"Lists (320)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- a
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>a</li>
+    // </ul>
+    // "###,
+    //         r###"Lists (321)"###
+    //     );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- a
+    //   - b
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>a
+    // <ul>
+    // <li>b</li>
+    // </ul>
+    // </li>
+    // </ul>
+    // "###,
+    //         r###"Lists (322)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"1. ```
+   foo
+   ```
+
+   bar
+"###,
+            DANGER
+        ),
+        r###"<ol>
+<li>
+<pre><code>foo
+</code></pre>
+<p>bar</p>
+</li>
+</ol>
+"###,
+        r###"Lists (323)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"* foo
+  * bar
+
+  baz
+"###,
+            DANGER
+        ),
+        r###"<ul>
+<li>
+<p>foo</p>
+<ul>
+<li>bar</li>
+</ul>
+<p>baz</p>
+</li>
+</ul>
+"###,
+        r###"Lists (324)"###
+    );
+
+    // To do: eol after containers.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"- a
+    //   - b
+    //   - c
+
+    // - d
+    //   - e
+    //   - f
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<ul>
+    // <li>
+    // <p>a</p>
+    // <ul>
+    // <li>b</li>
+    // <li>c</li>
+    // </ul>
+    // </li>
+    // <li>
+    // <p>d</p>
+    // <ul>
+    // <li>e</li>
+    // <li>f</li>
+    // </ul>
+    // </li>
+    // </ul>
+    // "###,
+    //         r###"Lists (325)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`hi`lo`
+"###,
+            DANGER
+        ),
+        r###"<p><code>hi</code>lo`</p>
+"###,
+        r###"Inlines (326)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`foo`
+"###,
+            DANGER
+        ),
+        r###"<p><code>foo</code></p>
+"###,
+        r###"Code spans (327)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`` foo ` bar ``
+"###,
+            DANGER
+        ),
+        r###"<p><code>foo ` bar</code></p>
+"###,
+        r###"Code spans (328)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"` `` `
+"###,
+            DANGER
+        ),
+        r###"<p><code>``</code></p>
+"###,
+        r###"Code spans (329)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`  ``  `
+"###,
+            DANGER
+        ),
+        r###"<p><code> `` </code></p>
+"###,
+        r###"Code spans (330)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"` a`
+"###,
+            DANGER
+        ),
+        r###"<p><code> a</code></p>
+"###,
+        r###"Code spans (331)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"` b `
+"###,
+            DANGER
+        ),
+        r###"<p><code> b </code></p>
+"###,
+        r###"Code spans (332)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"` `
+`  `
+"###,
+            DANGER
+        ),
+        r###"<p><code> </code>
+<code>  </code></p>
+"###,
+        r###"Code spans (333)"###
+    );
+
+    // To do: some bug with generating tests.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"``
+    // foo
+    // bar
+    // baz
+    // ``
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<p><code>foo bar   baz</code></p>
+    // "###,
+    //         r###"Code spans (334)"###
+    //     );
+
+    // To do: bug with a line ending sticking around? Generating this file?
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"``
+    // foo
+    // ``
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<p><code>foo </code></p>
+    // "###,
+    //         r###"Code spans (335)"###
+    //     );
+
+    // To do: bug generating this file?
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"`foo   bar
+    // baz`
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<p><code>foo   bar  baz</code></p>
+    // "###,
+    //         r###"Code spans (336)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`foo\`bar`
+"###,
+            DANGER
+        ),
+        r###"<p><code>foo\</code>bar`</p>
+"###,
+        r###"Code spans (337)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"``foo`bar``
+"###,
+            DANGER
+        ),
+        r###"<p><code>foo`bar</code></p>
+"###,
+        r###"Code spans (338)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"` foo `` bar `
+"###,
+            DANGER
+        ),
+        r###"<p><code>foo `` bar</code></p>
+"###,
+        r###"Code spans (339)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo`*`
+"###,
+            DANGER
+        ),
+        r###"<p>*foo<code>*</code></p>
+"###,
+        r###"Code spans (340)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[not a `link](/foo`)
+"###,
+            DANGER
+        ),
+        r###"<p>[not a <code>link](/foo</code>)</p>
+"###,
+        r###"Code spans (341)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`<a href="`">`
+"###,
+            DANGER
+        ),
+        r###"<p><code>&lt;a href=&quot;</code>&quot;&gt;`</p>
+"###,
+        r###"Code spans (342)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a href="`">`
+"###,
+            DANGER
+        ),
+        r###"<p><a href="`">`</p>
+"###,
+        r###"Code spans (343)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`<http://foo.bar.`baz>`
+"###,
+            DANGER
+        ),
+        r###"<p><code>&lt;http://foo.bar.</code>baz&gt;`</p>
+"###,
+        r###"Code spans (344)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<http://foo.bar.`baz>`
+"###,
+            DANGER
+        ),
+        r###"<p><a href="http://foo.bar.%60baz">http://foo.bar.`baz</a>`</p>
+"###,
+        r###"Code spans (345)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"```foo``
+"###,
+            DANGER
+        ),
+        r###"<p>```foo``</p>
+"###,
+        r###"Code spans (346)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`foo
+"###,
+            DANGER
+        ),
+        r###"<p>`foo</p>
+"###,
+        r###"Code spans (347)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`foo``bar``
+"###,
+            DANGER
+        ),
+        r###"<p>`foo<code>bar</code></p>
+"###,
+        r###"Code spans (348)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo bar*
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo bar</em></p>
+"###,
+        r###"Emphasis and strong emphasis (349)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"a * foo bar*
+"###,
+            DANGER
+        ),
+        r###"<p>a * foo bar*</p>
+"###,
+        r###"Emphasis and strong emphasis (350)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"a*"foo"*
+"###,
+            DANGER
+        ),
+        r###"<p>a*&quot;foo&quot;*</p>
+"###,
+        r###"Emphasis and strong emphasis (351)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"* a *
+"###,
+            DANGER
+        ),
+        r###"<p>* a *</p>
+"###,
+        r###"Emphasis and strong emphasis (352)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo*bar*
+"###,
+            DANGER
+        ),
+        r###"<p>foo<em>bar</em></p>
+"###,
+        r###"Emphasis and strong emphasis (353)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"5*6*78
+"###,
+            DANGER
+        ),
+        r###"<p>5<em>6</em>78</p>
+"###,
+        r###"Emphasis and strong emphasis (354)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_foo bar_
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo bar</em></p>
+"###,
+        r###"Emphasis and strong emphasis (355)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_ foo bar_
+"###,
+            DANGER
+        ),
+        r###"<p>_ foo bar_</p>
+"###,
+        r###"Emphasis and strong emphasis (356)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"a_"foo"_
+"###,
+            DANGER
+        ),
+        r###"<p>a_&quot;foo&quot;_</p>
+"###,
+        r###"Emphasis and strong emphasis (357)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo_bar_
+"###,
+            DANGER
+        ),
+        r###"<p>foo_bar_</p>
+"###,
+        r###"Emphasis and strong emphasis (358)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"5_6_78
+"###,
+            DANGER
+        ),
+        r###"<p>5_6_78</p>
+"###,
+        r###"Emphasis and strong emphasis (359)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"пристаням_стремятся_
+"###,
+            DANGER
+        ),
+        r###"<p>пристаням_стремятся_</p>
+"###,
+        r###"Emphasis and strong emphasis (360)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"aa_"bb"_cc
+"###,
+            DANGER
+        ),
+        r###"<p>aa_&quot;bb&quot;_cc</p>
+"###,
+        r###"Emphasis and strong emphasis (361)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo-_(bar)_
+"###,
+            DANGER
+        ),
+        r###"<p>foo-<em>(bar)</em></p>
+"###,
+        r###"Emphasis and strong emphasis (362)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_foo*
+"###,
+            DANGER
+        ),
+        r###"<p>_foo*</p>
+"###,
+        r###"Emphasis and strong emphasis (363)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo bar *
+"###,
+            DANGER
+        ),
+        r###"<p>*foo bar *</p>
+"###,
+        r###"Emphasis and strong emphasis (364)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo bar
+*
+"###,
+            DANGER
+        ),
+        r###"<p>*foo bar
+*</p>
+"###,
+        r###"Emphasis and strong emphasis (365)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*(*foo)
+"###,
+            DANGER
+        ),
+        r###"<p>*(*foo)</p>
+"###,
+        r###"Emphasis and strong emphasis (366)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*(*foo*)*
+"###,
+            DANGER
+        ),
+        r###"<p><em>(<em>foo</em>)</em></p>
+"###,
+        r###"Emphasis and strong emphasis (367)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo*bar
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo</em>bar</p>
+"###,
+        r###"Emphasis and strong emphasis (368)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_foo bar _
+"###,
+            DANGER
+        ),
+        r###"<p>_foo bar _</p>
+"###,
+        r###"Emphasis and strong emphasis (369)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_(_foo)
+"###,
+            DANGER
+        ),
+        r###"<p>_(_foo)</p>
+"###,
+        r###"Emphasis and strong emphasis (370)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_(_foo_)_
+"###,
+            DANGER
+        ),
+        r###"<p><em>(<em>foo</em>)</em></p>
+"###,
+        r###"Emphasis and strong emphasis (371)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_foo_bar
+"###,
+            DANGER
+        ),
+        r###"<p>_foo_bar</p>
+"###,
+        r###"Emphasis and strong emphasis (372)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_пристаням_стремятся
+"###,
+            DANGER
+        ),
+        r###"<p>_пристаням_стремятся</p>
+"###,
+        r###"Emphasis and strong emphasis (373)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_foo_bar_baz_
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo_bar_baz</em></p>
+"###,
+        r###"Emphasis and strong emphasis (374)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_(bar)_.
+"###,
+            DANGER
+        ),
+        r###"<p><em>(bar)</em>.</p>
+"###,
+        r###"Emphasis and strong emphasis (375)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo bar**
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo bar</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (376)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"** foo bar**
+"###,
+            DANGER
+        ),
+        r###"<p>** foo bar**</p>
+"###,
+        r###"Emphasis and strong emphasis (377)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"a**"foo"**
+"###,
+            DANGER
+        ),
+        r###"<p>a**&quot;foo&quot;**</p>
+"###,
+        r###"Emphasis and strong emphasis (378)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo**bar**
+"###,
+            DANGER
+        ),
+        r###"<p>foo<strong>bar</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (379)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__foo bar__
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo bar</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (380)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__ foo bar__
+"###,
+            DANGER
+        ),
+        r###"<p>__ foo bar__</p>
+"###,
+        r###"Emphasis and strong emphasis (381)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__
+foo bar__
+"###,
+            DANGER
+        ),
+        r###"<p>__
+foo bar__</p>
+"###,
+        r###"Emphasis and strong emphasis (382)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"a__"foo"__
+"###,
+            DANGER
+        ),
+        r###"<p>a__&quot;foo&quot;__</p>
+"###,
+        r###"Emphasis and strong emphasis (383)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo__bar__
+"###,
+            DANGER
+        ),
+        r###"<p>foo__bar__</p>
+"###,
+        r###"Emphasis and strong emphasis (384)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"5__6__78
+"###,
+            DANGER
+        ),
+        r###"<p>5__6__78</p>
+"###,
+        r###"Emphasis and strong emphasis (385)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"пристаням__стремятся__
+"###,
+            DANGER
+        ),
+        r###"<p>пристаням__стремятся__</p>
+"###,
+        r###"Emphasis and strong emphasis (386)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__foo, __bar__, baz__
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo, <strong>bar</strong>, baz</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (387)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo-__(bar)__
+"###,
+            DANGER
+        ),
+        r###"<p>foo-<strong>(bar)</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (388)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo bar **
+"###,
+            DANGER
+        ),
+        r###"<p>**foo bar **</p>
+"###,
+        r###"Emphasis and strong emphasis (389)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**(**foo)
+"###,
+            DANGER
+        ),
+        r###"<p>**(**foo)</p>
+"###,
+        r###"Emphasis and strong emphasis (390)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*(**foo**)*
+"###,
+            DANGER
+        ),
+        r###"<p><em>(<strong>foo</strong>)</em></p>
+"###,
+        r###"Emphasis and strong emphasis (391)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**Gomphocarpus (*Gomphocarpus physocarpus*, syn.
+*Asclepias physocarpa*)**
+"###,
+            DANGER
+        ),
+        r###"<p><strong>Gomphocarpus (<em>Gomphocarpus physocarpus</em>, syn.
+<em>Asclepias physocarpa</em>)</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (392)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo "*bar*" foo**
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo &quot;<em>bar</em>&quot; foo</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (393)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo**bar
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo</strong>bar</p>
+"###,
+        r###"Emphasis and strong emphasis (394)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__foo bar __
+"###,
+            DANGER
+        ),
+        r###"<p>__foo bar __</p>
+"###,
+        r###"Emphasis and strong emphasis (395)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__(__foo)
+"###,
+            DANGER
+        ),
+        r###"<p>__(__foo)</p>
+"###,
+        r###"Emphasis and strong emphasis (396)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_(__foo__)_
+"###,
+            DANGER
+        ),
+        r###"<p><em>(<strong>foo</strong>)</em></p>
+"###,
+        r###"Emphasis and strong emphasis (397)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__foo__bar
+"###,
+            DANGER
+        ),
+        r###"<p>__foo__bar</p>
+"###,
+        r###"Emphasis and strong emphasis (398)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__пристаням__стремятся
+"###,
+            DANGER
+        ),
+        r###"<p>__пристаням__стремятся</p>
+"###,
+        r###"Emphasis and strong emphasis (399)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__foo__bar__baz__
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo__bar__baz</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (400)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__(bar)__.
+"###,
+            DANGER
+        ),
+        r###"<p><strong>(bar)</strong>.</p>
+"###,
+        r###"Emphasis and strong emphasis (401)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo [bar](/url)*
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo <a href="/url">bar</a></em></p>
+"###,
+        r###"Emphasis and strong emphasis (402)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo
+bar*
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo
+bar</em></p>
+"###,
+        r###"Emphasis and strong emphasis (403)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_foo __bar__ baz_
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo <strong>bar</strong> baz</em></p>
+"###,
+        r###"Emphasis and strong emphasis (404)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_foo _bar_ baz_
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo <em>bar</em> baz</em></p>
+"###,
+        r###"Emphasis and strong emphasis (405)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__foo_ bar_
+"###,
+            DANGER
+        ),
+        r###"<p><em><em>foo</em> bar</em></p>
+"###,
+        r###"Emphasis and strong emphasis (406)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo *bar**
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo <em>bar</em></em></p>
+"###,
+        r###"Emphasis and strong emphasis (407)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo **bar** baz*
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo <strong>bar</strong> baz</em></p>
+"###,
+        r###"Emphasis and strong emphasis (408)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo**bar**baz*
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo<strong>bar</strong>baz</em></p>
+"###,
+        r###"Emphasis and strong emphasis (409)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo**bar*
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo**bar</em></p>
+"###,
+        r###"Emphasis and strong emphasis (410)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"***foo** bar*
+"###,
+            DANGER
+        ),
+        r###"<p><em><strong>foo</strong> bar</em></p>
+"###,
+        r###"Emphasis and strong emphasis (411)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo **bar***
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo <strong>bar</strong></em></p>
+"###,
+        r###"Emphasis and strong emphasis (412)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo**bar***
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo<strong>bar</strong></em></p>
+"###,
+        r###"Emphasis and strong emphasis (413)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo***bar***baz
+"###,
+            DANGER
+        ),
+        r###"<p>foo<em><strong>bar</strong></em>baz</p>
+"###,
+        r###"Emphasis and strong emphasis (414)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo******bar*********baz
+"###,
+            DANGER
+        ),
+        r###"<p>foo<strong><strong><strong>bar</strong></strong></strong>***baz</p>
+"###,
+        r###"Emphasis and strong emphasis (415)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo **bar *baz* bim** bop*
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo <strong>bar <em>baz</em> bim</strong> bop</em></p>
+"###,
+        r###"Emphasis and strong emphasis (416)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo [*bar*](/url)*
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo <a href="/url"><em>bar</em></a></em></p>
+"###,
+        r###"Emphasis and strong emphasis (417)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"** is not an empty emphasis
+"###,
+            DANGER
+        ),
+        r###"<p>** is not an empty emphasis</p>
+"###,
+        r###"Emphasis and strong emphasis (418)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**** is not an empty strong emphasis
+"###,
+            DANGER
+        ),
+        r###"<p>**** is not an empty strong emphasis</p>
+"###,
+        r###"Emphasis and strong emphasis (419)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo [bar](/url)**
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo <a href="/url">bar</a></strong></p>
+"###,
+        r###"Emphasis and strong emphasis (420)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo
+bar**
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo
+bar</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (421)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__foo _bar_ baz__
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo <em>bar</em> baz</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (422)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__foo __bar__ baz__
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo <strong>bar</strong> baz</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (423)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"____foo__ bar__
+"###,
+            DANGER
+        ),
+        r###"<p><strong><strong>foo</strong> bar</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (424)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo **bar****
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo <strong>bar</strong></strong></p>
+"###,
+        r###"Emphasis and strong emphasis (425)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo *bar* baz**
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo <em>bar</em> baz</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (426)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo*bar*baz**
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo<em>bar</em>baz</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (427)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"***foo* bar**
+"###,
+            DANGER
+        ),
+        r###"<p><strong><em>foo</em> bar</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (428)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo *bar***
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo <em>bar</em></strong></p>
+"###,
+        r###"Emphasis and strong emphasis (429)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo *bar **baz**
+bim* bop**
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo <em>bar <strong>baz</strong>
+bim</em> bop</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (430)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo [*bar*](/url)**
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo <a href="/url"><em>bar</em></a></strong></p>
+"###,
+        r###"Emphasis and strong emphasis (431)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__ is not an empty emphasis
+"###,
+            DANGER
+        ),
+        r###"<p>__ is not an empty emphasis</p>
+"###,
+        r###"Emphasis and strong emphasis (432)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"____ is not an empty strong emphasis
+"###,
+            DANGER
+        ),
+        r###"<p>____ is not an empty strong emphasis</p>
+"###,
+        r###"Emphasis and strong emphasis (433)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo ***
+"###,
+            DANGER
+        ),
+        r###"<p>foo ***</p>
+"###,
+        r###"Emphasis and strong emphasis (434)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo *\**
+"###,
+            DANGER
+        ),
+        r###"<p>foo <em>*</em></p>
+"###,
+        r###"Emphasis and strong emphasis (435)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo *_*
+"###,
+            DANGER
+        ),
+        r###"<p>foo <em>_</em></p>
+"###,
+        r###"Emphasis and strong emphasis (436)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo *****
+"###,
+            DANGER
+        ),
+        r###"<p>foo *****</p>
+"###,
+        r###"Emphasis and strong emphasis (437)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo **\***
+"###,
+            DANGER
+        ),
+        r###"<p>foo <strong>*</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (438)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo **_**
+"###,
+            DANGER
+        ),
+        r###"<p>foo <strong>_</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (439)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo*
+"###,
+            DANGER
+        ),
+        r###"<p>*<em>foo</em></p>
+"###,
+        r###"Emphasis and strong emphasis (440)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo**
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo</em>*</p>
+"###,
+        r###"Emphasis and strong emphasis (441)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"***foo**
+"###,
+            DANGER
+        ),
+        r###"<p>*<strong>foo</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (442)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"****foo*
+"###,
+            DANGER
+        ),
+        r###"<p>***<em>foo</em></p>
+"###,
+        r###"Emphasis and strong emphasis (443)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo***
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo</strong>*</p>
+"###,
+        r###"Emphasis and strong emphasis (444)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo****
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo</em>***</p>
+"###,
+        r###"Emphasis and strong emphasis (445)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo ___
+"###,
+            DANGER
+        ),
+        r###"<p>foo ___</p>
+"###,
+        r###"Emphasis and strong emphasis (446)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo _\__
+"###,
+            DANGER
+        ),
+        r###"<p>foo <em>_</em></p>
+"###,
+        r###"Emphasis and strong emphasis (447)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo _*_
+"###,
+            DANGER
+        ),
+        r###"<p>foo <em>*</em></p>
+"###,
+        r###"Emphasis and strong emphasis (448)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo _____
+"###,
+            DANGER
+        ),
+        r###"<p>foo _____</p>
+"###,
+        r###"Emphasis and strong emphasis (449)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo __\___
+"###,
+            DANGER
+        ),
+        r###"<p>foo <strong>_</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (450)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo __*__
+"###,
+            DANGER
+        ),
+        r###"<p>foo <strong>*</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (451)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__foo_
+"###,
+            DANGER
+        ),
+        r###"<p>_<em>foo</em></p>
+"###,
+        r###"Emphasis and strong emphasis (452)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_foo__
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo</em>_</p>
+"###,
+        r###"Emphasis and strong emphasis (453)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"___foo__
+"###,
+            DANGER
+        ),
+        r###"<p>_<strong>foo</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (454)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"____foo_
+"###,
+            DANGER
+        ),
+        r###"<p>___<em>foo</em></p>
+"###,
+        r###"Emphasis and strong emphasis (455)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__foo___
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo</strong>_</p>
+"###,
+        r###"Emphasis and strong emphasis (456)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_foo____
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo</em>___</p>
+"###,
+        r###"Emphasis and strong emphasis (457)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo**
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (458)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*_foo_*
+"###,
+            DANGER
+        ),
+        r###"<p><em><em>foo</em></em></p>
+"###,
+        r###"Emphasis and strong emphasis (459)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__foo__
+"###,
+            DANGER
+        ),
+        r###"<p><strong>foo</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (460)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_*foo*_
+"###,
+            DANGER
+        ),
+        r###"<p><em><em>foo</em></em></p>
+"###,
+        r###"Emphasis and strong emphasis (461)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"****foo****
+"###,
+            DANGER
+        ),
+        r###"<p><strong><strong>foo</strong></strong></p>
+"###,
+        r###"Emphasis and strong emphasis (462)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"____foo____
+"###,
+            DANGER
+        ),
+        r###"<p><strong><strong>foo</strong></strong></p>
+"###,
+        r###"Emphasis and strong emphasis (463)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"******foo******
+"###,
+            DANGER
+        ),
+        r###"<p><strong><strong><strong>foo</strong></strong></strong></p>
+"###,
+        r###"Emphasis and strong emphasis (464)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"***foo***
+"###,
+            DANGER
+        ),
+        r###"<p><em><strong>foo</strong></em></p>
+"###,
+        r###"Emphasis and strong emphasis (465)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_____foo_____
+"###,
+            DANGER
+        ),
+        r###"<p><em><strong><strong>foo</strong></strong></em></p>
+"###,
+        r###"Emphasis and strong emphasis (466)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo _bar* baz_
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo _bar</em> baz_</p>
+"###,
+        r###"Emphasis and strong emphasis (467)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo __bar *baz bim__ bam*
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo <strong>bar *baz bim</strong> bam</em></p>
+"###,
+        r###"Emphasis and strong emphasis (468)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**foo **bar baz**
+"###,
+            DANGER
+        ),
+        r###"<p>**foo <strong>bar baz</strong></p>
+"###,
+        r###"Emphasis and strong emphasis (469)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo *bar baz*
+"###,
+            DANGER
+        ),
+        r###"<p>*foo <em>bar baz</em></p>
+"###,
+        r###"Emphasis and strong emphasis (470)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*[bar*](/url)
+"###,
+            DANGER
+        ),
+        r###"<p>*<a href="/url">bar*</a></p>
+"###,
+        r###"Emphasis and strong emphasis (471)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_foo [bar_](/url)
+"###,
+            DANGER
+        ),
+        r###"<p>_foo <a href="/url">bar_</a></p>
+"###,
+        r###"Emphasis and strong emphasis (472)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*<img src="foo" title="*"/>
+"###,
+            DANGER
+        ),
+        r###"<p>*<img src="foo" title="*"/></p>
+"###,
+        r###"Emphasis and strong emphasis (473)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**<a href="**">
+"###,
+            DANGER
+        ),
+        r###"<p>**<a href="**"></p>
+"###,
+        r###"Emphasis and strong emphasis (474)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__<a href="__">
+"###,
+            DANGER
+        ),
+        r###"<p>__<a href="__"></p>
+"###,
+        r###"Emphasis and strong emphasis (475)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*a `*`*
+"###,
+            DANGER
+        ),
+        r###"<p><em>a <code>*</code></em></p>
+"###,
+        r###"Emphasis and strong emphasis (476)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"_a `_`_
+"###,
+            DANGER
+        ),
+        r###"<p><em>a <code>_</code></em></p>
+"###,
+        r###"Emphasis and strong emphasis (477)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"**a<http://foo.bar/?q=**>
+"###,
+            DANGER
+        ),
+        r###"<p>**a<a href="http://foo.bar/?q=**">http://foo.bar/?q=**</a></p>
+"###,
+        r###"Emphasis and strong emphasis (478)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"__a<http://foo.bar/?q=__>
+"###,
+            DANGER
+        ),
+        r###"<p>__a<a href="http://foo.bar/?q=__">http://foo.bar/?q=__</a></p>
+"###,
+        r###"Emphasis and strong emphasis (479)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](/uri "title")
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri" title="title">link</a></p>
+"###,
+        r###"Links (480)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](/uri)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri">link</a></p>
+"###,
+        r###"Links (481)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[](./target.md)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="./target.md"></a></p>
+"###,
+        r###"Links (482)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link]()
+"###,
+            DANGER
+        ),
+        r###"<p><a href="">link</a></p>
+"###,
+        r###"Links (483)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](<>)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="">link</a></p>
+"###,
+        r###"Links (484)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[]()
+"###,
+            DANGER
+        ),
+        r###"<p><a href=""></a></p>
+"###,
+        r###"Links (485)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](/my uri)
+"###,
+            DANGER
+        ),
+        r###"<p>[link](/my uri)</p>
+"###,
+        r###"Links (486)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](</my uri>)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/my%20uri">link</a></p>
+"###,
+        r###"Links (487)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](foo
+bar)
+"###,
+            DANGER
+        ),
+        r###"<p>[link](foo
+bar)</p>
+"###,
+        r###"Links (488)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](<foo
+bar>)
+"###,
+            DANGER
+        ),
+        r###"<p>[link](<foo
+bar>)</p>
+"###,
+        r###"Links (489)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[a](<b)c>)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="b)c">a</a></p>
+"###,
+        r###"Links (490)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](<foo\>)
+"###,
+            DANGER
+        ),
+        r###"<p>[link](&lt;foo&gt;)</p>
+"###,
+        r###"Links (491)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[a](<b)c
+[a](<b)c>
+[a](<b>c)
+"###,
+            DANGER
+        ),
+        r###"<p>[a](&lt;b)c
+[a](&lt;b)c&gt;
+[a](<b>c)</p>
+"###,
+        r###"Links (492)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](\(foo\))
+"###,
+            DANGER
+        ),
+        r###"<p><a href="(foo)">link</a></p>
+"###,
+        r###"Links (493)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](foo(and(bar)))
+"###,
+            DANGER
+        ),
+        r###"<p><a href="foo(and(bar))">link</a></p>
+"###,
+        r###"Links (494)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](foo(and(bar))
+"###,
+            DANGER
+        ),
+        r###"<p>[link](foo(and(bar))</p>
+"###,
+        r###"Links (495)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](foo\(and\(bar\))
+"###,
+            DANGER
+        ),
+        r###"<p><a href="foo(and(bar)">link</a></p>
+"###,
+        r###"Links (496)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](<foo(and(bar)>)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="foo(and(bar)">link</a></p>
+"###,
+        r###"Links (497)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](foo\)\:)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="foo):">link</a></p>
+"###,
+        r###"Links (498)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](#fragment)
+
+[link](http://example.com#fragment)
+
+[link](http://example.com?foo=3#frag)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="#fragment">link</a></p>
+<p><a href="http://example.com#fragment">link</a></p>
+<p><a href="http://example.com?foo=3#frag">link</a></p>
+"###,
+        r###"Links (499)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](foo\bar)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="foo%5Cbar">link</a></p>
+"###,
+        r###"Links (500)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](foo%20b&auml;)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="foo%20b%C3%A4">link</a></p>
+"###,
+        r###"Links (501)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link]("title")
+"###,
+            DANGER
+        ),
+        r###"<p><a href="%22title%22">link</a></p>
+"###,
+        r###"Links (502)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](/url "title")
+[link](/url 'title')
+[link](/url (title))
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title">link</a>
+<a href="/url" title="title">link</a>
+<a href="/url" title="title">link</a></p>
+"###,
+        r###"Links (503)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](/url "title \"&quot;")
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title &quot;&quot;">link</a></p>
+"###,
+        r###"Links (504)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](/url "title")
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url%C2%A0%22title%22">link</a></p>
+"###,
+        r###"Links (505)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](/url "title "and" title")
+"###,
+            DANGER
+        ),
+        r###"<p>[link](/url &quot;title &quot;and&quot; title&quot;)</p>
+"###,
+        r###"Links (506)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](/url 'title "and" title')
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title &quot;and&quot; title">link</a></p>
+"###,
+        r###"Links (507)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link](   /uri
+  "title"  )
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri" title="title">link</a></p>
+"###,
+        r###"Links (508)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link] (/uri)
+"###,
+            DANGER
+        ),
+        r###"<p>[link] (/uri)</p>
+"###,
+        r###"Links (509)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link [foo [bar]]](/uri)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri">link [foo [bar]]</a></p>
+"###,
+        r###"Links (510)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link] bar](/uri)
+"###,
+            DANGER
+        ),
+        r###"<p>[link] bar](/uri)</p>
+"###,
+        r###"Links (511)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link [bar](/uri)
+"###,
+            DANGER
+        ),
+        r###"<p>[link <a href="/uri">bar</a></p>
+"###,
+        r###"Links (512)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link \[bar](/uri)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri">link [bar</a></p>
+"###,
+        r###"Links (513)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link *foo **bar** `#`*](/uri)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri">link <em>foo <strong>bar</strong> <code>#</code></em></a></p>
+"###,
+        r###"Links (514)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[![moon](moon.jpg)](/uri)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri"><img src="moon.jpg" alt="moon" /></a></p>
+"###,
+        r###"Links (515)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo [bar](/uri)](/uri)
+"###,
+            DANGER
+        ),
+        r###"<p>[foo <a href="/uri">bar</a>](/uri)</p>
+"###,
+        r###"Links (516)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo *[bar [baz](/uri)](/uri)*](/uri)
+"###,
+            DANGER
+        ),
+        r###"<p>[foo <em>[bar <a href="/uri">baz</a>](/uri)</em>](/uri)</p>
+"###,
+        r###"Links (517)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![[[foo](uri1)](uri2)](uri3)
+"###,
+            DANGER
+        ),
+        r###"<p><img src="uri3" alt="[foo](uri2)" /></p>
+"###,
+        r###"Links (518)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*[foo*](/uri)
+"###,
+            DANGER
+        ),
+        r###"<p>*<a href="/uri">foo*</a></p>
+"###,
+        r###"Links (519)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo *bar](baz*)
+"###,
+            DANGER
+        ),
+        r###"<p><a href="baz*">foo *bar</a></p>
+"###,
+        r###"Links (520)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo [bar* baz]
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo [bar</em> baz]</p>
+"###,
+        r###"Links (521)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo <bar attr="](baz)">
+"###,
+            DANGER
+        ),
+        r###"<p>[foo <bar attr="](baz)"></p>
+"###,
+        r###"Links (522)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo`](/uri)`
+"###,
+            DANGER
+        ),
+        r###"<p>[foo<code>](/uri)</code></p>
+"###,
+        r###"Links (523)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo<http://example.com/?search=](uri)>
+"###,
+            DANGER
+        ),
+        r###"<p>[foo<a href="http://example.com/?search=%5D(uri)">http://example.com/?search=](uri)</a></p>
+"###,
+        r###"Links (524)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo][bar]
+
+[bar]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title">foo</a></p>
+"###,
+        r###"Links (525)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link [foo [bar]]][ref]
+
+[ref]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri">link [foo [bar]]</a></p>
+"###,
+        r###"Links (526)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link \[bar][ref]
+
+[ref]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri">link [bar</a></p>
+"###,
+        r###"Links (527)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[link *foo **bar** `#`*][ref]
+
+[ref]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri">link <em>foo <strong>bar</strong> <code>#</code></em></a></p>
+"###,
+        r###"Links (528)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[![moon](moon.jpg)][ref]
+
+[ref]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri"><img src="moon.jpg" alt="moon" /></a></p>
+"###,
+        r###"Links (529)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo [bar](/uri)][ref]
+
+[ref]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p>[foo <a href="/uri">bar</a>]<a href="/uri">ref</a></p>
+"###,
+        r###"Links (530)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo *bar [baz][ref]*][ref]
+
+[ref]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p>[foo <em>bar <a href="/uri">baz</a></em>]<a href="/uri">ref</a></p>
+"###,
+        r###"Links (531)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*[foo*][ref]
+
+[ref]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p>*<a href="/uri">foo*</a></p>
+"###,
+        r###"Links (532)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo *bar][ref]*
+
+[ref]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri">foo *bar</a>*</p>
+"###,
+        r###"Links (533)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo <bar attr="][ref]">
+
+[ref]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p>[foo <bar attr="][ref]"></p>
+"###,
+        r###"Links (534)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo`][ref]`
+
+[ref]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p>[foo<code>][ref]</code></p>
+"###,
+        r###"Links (535)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo<http://example.com/?search=][ref]>
+
+[ref]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p>[foo<a href="http://example.com/?search=%5D%5Bref%5D">http://example.com/?search=][ref]</a></p>
+"###,
+        r###"Links (536)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo][BaR]
+
+[bar]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title">foo</a></p>
+"###,
+        r###"Links (537)"###
+    );
+
+    // To do: bug with unicode normalization.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"[ẞ]
+
+    // [SS]: /url
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<p><a href="/url">ẞ</a></p>
+    // "###,
+    //         r###"Links (538)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[Foo
+  bar]: /url
+
+[Baz][Foo bar]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url">Baz</a></p>
+"###,
+        r###"Links (539)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo] [bar]
+
+[bar]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p>[foo] <a href="/url" title="title">bar</a></p>
+"###,
+        r###"Links (540)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]
+[bar]
+
+[bar]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p>[foo]
+<a href="/url" title="title">bar</a></p>
+"###,
+        r###"Links (541)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]: /url1
+
+[foo]: /url2
+
+[bar][foo]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url1">bar</a></p>
+"###,
+        r###"Links (542)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[bar][foo\!]
+
+[foo!]: /url
+"###,
+            DANGER
+        ),
+        r###"<p>[bar][foo!]</p>
+"###,
+        r###"Links (543)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo][ref[]
+
+[ref[]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p>[foo][ref[]</p>
+<p>[ref[]: /uri</p>
+"###,
+        r###"Links (544)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo][ref[bar]]
+
+[ref[bar]]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p>[foo][ref[bar]]</p>
+<p>[ref[bar]]: /uri</p>
+"###,
+        r###"Links (545)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[[[foo]]]
+
+[[[foo]]]: /url
+"###,
+            DANGER
+        ),
+        r###"<p>[[[foo]]]</p>
+<p>[[[foo]]]: /url</p>
+"###,
+        r###"Links (546)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo][ref\[]
+
+[ref\[]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri">foo</a></p>
+"###,
+        r###"Links (547)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[bar\\]: /uri
+
+[bar\\]
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/uri">bar\</a></p>
+"###,
+        r###"Links (548)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[]
+
+[]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p>[]</p>
+<p>[]: /uri</p>
+"###,
+        r###"Links (549)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[
+ ]
+
+[
+ ]: /uri
+"###,
+            DANGER
+        ),
+        r###"<p>[
+]</p>
+<p>[
+]: /uri</p>
+"###,
+        r###"Links (550)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo][]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title">foo</a></p>
+"###,
+        r###"Links (551)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[*foo* bar][]
+
+[*foo* bar]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title"><em>foo</em> bar</a></p>
+"###,
+        r###"Links (552)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[Foo][]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title">Foo</a></p>
+"###,
+        r###"Links (553)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]
+[]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title">foo</a>
+[]</p>
+"###,
+        r###"Links (554)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title">foo</a></p>
+"###,
+        r###"Links (555)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[*foo* bar]
+
+[*foo* bar]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title"><em>foo</em> bar</a></p>
+"###,
+        r###"Links (556)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[[*foo* bar]]
+
+[*foo* bar]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p>[<a href="/url" title="title"><em>foo</em> bar</a>]</p>
+"###,
+        r###"Links (557)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[[bar [foo]
+
+[foo]: /url
+"###,
+            DANGER
+        ),
+        r###"<p>[[bar <a href="/url">foo</a></p>
+"###,
+        r###"Links (558)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[Foo]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url" title="title">Foo</a></p>
+"###,
+        r###"Links (559)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo] bar
+
+[foo]: /url
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url">foo</a> bar</p>
+"###,
+        r###"Links (560)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"\[foo]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p>[foo]</p>
+"###,
+        r###"Links (561)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo*]: /url
+
+*[foo*]
+"###,
+            DANGER
+        ),
+        r###"<p>*<a href="/url">foo*</a></p>
+"###,
+        r###"Links (562)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo][bar]
+
+[foo]: /url1
+[bar]: /url2
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url2">foo</a></p>
+"###,
+        r###"Links (563)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo][]
+
+[foo]: /url1
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url1">foo</a></p>
+"###,
+        r###"Links (564)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo]()
+
+[foo]: /url1
+"###,
+            DANGER
+        ),
+        r###"<p><a href="">foo</a></p>
+"###,
+        r###"Links (565)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo](not a link)
+
+[foo]: /url1
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url1">foo</a>(not a link)</p>
+"###,
+        r###"Links (566)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo][bar][baz]
+
+[baz]: /url
+"###,
+            DANGER
+        ),
+        r###"<p>[foo]<a href="/url">bar</a></p>
+"###,
+        r###"Links (567)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo][bar][baz]
+
+[baz]: /url1
+[bar]: /url2
+"###,
+            DANGER
+        ),
+        r###"<p><a href="/url2">foo</a><a href="/url1">baz</a></p>
+"###,
+        r###"Links (568)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"[foo][bar][baz]
+
+[baz]: /url1
+[foo]: /url2
+"###,
+            DANGER
+        ),
+        r###"<p>[foo]<a href="/url1">bar</a></p>
+"###,
+        r###"Links (569)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo](/url "title")
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url" alt="foo" title="title" /></p>
+"###,
+        r###"Images (570)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo *bar*]
+
+[foo *bar*]: train.jpg "train & tracks"
+"###,
+            DANGER
+        ),
+        r###"<p><img src="train.jpg" alt="foo bar" title="train &amp; tracks" /></p>
+"###,
+        r###"Images (571)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo ![bar](/url)](/url2)
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url2" alt="foo bar" /></p>
+"###,
+        r###"Images (572)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo [bar](/url)](/url2)
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url2" alt="foo bar" /></p>
+"###,
+        r###"Images (573)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo *bar*][]
+
+[foo *bar*]: train.jpg "train & tracks"
+"###,
+            DANGER
+        ),
+        r###"<p><img src="train.jpg" alt="foo bar" title="train &amp; tracks" /></p>
+"###,
+        r###"Images (574)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo *bar*][foobar]
+
+[FOOBAR]: train.jpg "train & tracks"
+"###,
+            DANGER
+        ),
+        r###"<p><img src="train.jpg" alt="foo bar" title="train &amp; tracks" /></p>
+"###,
+        r###"Images (575)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo](train.jpg)
+"###,
+            DANGER
+        ),
+        r###"<p><img src="train.jpg" alt="foo" /></p>
+"###,
+        r###"Images (576)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"My ![foo bar](/path/to/train.jpg  "title"   )
+"###,
+            DANGER
+        ),
+        r###"<p>My <img src="/path/to/train.jpg" alt="foo bar" title="title" /></p>
+"###,
+        r###"Images (577)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo](<url>)
+"###,
+            DANGER
+        ),
+        r###"<p><img src="url" alt="foo" /></p>
+"###,
+        r###"Images (578)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![](/url)
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url" alt="" /></p>
+"###,
+        r###"Images (579)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo][bar]
+
+[bar]: /url
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url" alt="foo" /></p>
+"###,
+        r###"Images (580)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo][bar]
+
+[BAR]: /url
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url" alt="foo" /></p>
+"###,
+        r###"Images (581)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo][]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url" alt="foo" title="title" /></p>
+"###,
+        r###"Images (582)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![*foo* bar][]
+
+[*foo* bar]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url" alt="foo bar" title="title" /></p>
+"###,
+        r###"Images (583)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![Foo][]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url" alt="Foo" title="title" /></p>
+"###,
+        r###"Images (584)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo]
+[]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url" alt="foo" title="title" />
+[]</p>
+"###,
+        r###"Images (585)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![foo]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url" alt="foo" title="title" /></p>
+"###,
+        r###"Images (586)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![*foo* bar]
+
+[*foo* bar]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url" alt="foo bar" title="title" /></p>
+"###,
+        r###"Images (587)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![[foo]]
+
+[[foo]]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p>![[foo]]</p>
+<p>[[foo]]: /url &quot;title&quot;</p>
+"###,
+        r###"Images (588)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"![Foo]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p><img src="/url" alt="Foo" title="title" /></p>
+"###,
+        r###"Images (589)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"!\[foo]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p>![foo]</p>
+"###,
+        r###"Images (590)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"\![foo]
+
+[foo]: /url "title"
+"###,
+            DANGER
+        ),
+        r###"<p>!<a href="/url" title="title">foo</a></p>
+"###,
+        r###"Images (591)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<http://foo.bar.baz>
+"###,
+            DANGER
+        ),
+        r###"<p><a href="http://foo.bar.baz">http://foo.bar.baz</a></p>
+"###,
+        r###"Autolinks (592)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<http://foo.bar.baz/test?q=hello&id=22&boolean>
+"###,
+            DANGER
+        ),
+        r###"<p><a href="http://foo.bar.baz/test?q=hello&amp;id=22&amp;boolean">http://foo.bar.baz/test?q=hello&amp;id=22&amp;boolean</a></p>
+"###,
+        r###"Autolinks (593)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<irc://foo.bar:2233/baz>
+"###,
+            DANGER
+        ),
+        r###"<p><a href="irc://foo.bar:2233/baz">irc://foo.bar:2233/baz</a></p>
+"###,
+        r###"Autolinks (594)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<MAILTO:FOO@BAR.BAZ>
+"###,
+            DANGER
+        ),
+        r###"<p><a href="MAILTO:FOO@BAR.BAZ">MAILTO:FOO@BAR.BAZ</a></p>
+"###,
+        r###"Autolinks (595)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a+b+c:d>
+"###,
+            DANGER
+        ),
+        r###"<p><a href="a+b+c:d">a+b+c:d</a></p>
+"###,
+        r###"Autolinks (596)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<made-up-scheme://foo,bar>
+"###,
+            DANGER
+        ),
+        r###"<p><a href="made-up-scheme://foo,bar">made-up-scheme://foo,bar</a></p>
+"###,
+        r###"Autolinks (597)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<http://../>
+"###,
+            DANGER
+        ),
+        r###"<p><a href="http://../">http://../</a></p>
+"###,
+        r###"Autolinks (598)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<localhost:5001/foo>
+"###,
+            DANGER
+        ),
+        r###"<p><a href="localhost:5001/foo">localhost:5001/foo</a></p>
+"###,
+        r###"Autolinks (599)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<http://foo.bar/baz bim>
+"###,
+            DANGER
+        ),
+        r###"<p>&lt;http://foo.bar/baz bim&gt;</p>
+"###,
+        r###"Autolinks (600)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<http://example.com/\[\>
+"###,
+            DANGER
+        ),
+        r###"<p><a href="http://example.com/%5C%5B%5C">http://example.com/\[\</a></p>
+"###,
+        r###"Autolinks (601)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<foo@bar.example.com>
+"###,
+            DANGER
+        ),
+        r###"<p><a href="mailto:foo@bar.example.com">foo@bar.example.com</a></p>
+"###,
+        r###"Autolinks (602)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<foo+special@Bar.baz-bar0.com>
+"###,
+            DANGER
+        ),
+        r###"<p><a href="mailto:foo+special@Bar.baz-bar0.com">foo+special@Bar.baz-bar0.com</a></p>
+"###,
+        r###"Autolinks (603)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<foo\+@bar.example.com>
+"###,
+            DANGER
+        ),
+        r###"<p>&lt;foo+@bar.example.com&gt;</p>
+"###,
+        r###"Autolinks (604)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<>
+"###,
+            DANGER
+        ),
+        r###"<p>&lt;&gt;</p>
+"###,
+        r###"Autolinks (605)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"< http://foo.bar >
+"###,
+            DANGER
+        ),
+        r###"<p>&lt; http://foo.bar &gt;</p>
+"###,
+        r###"Autolinks (606)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<m:abc>
+"###,
+            DANGER
+        ),
+        r###"<p>&lt;m:abc&gt;</p>
+"###,
+        r###"Autolinks (607)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<foo.bar.baz>
+"###,
+            DANGER
+        ),
+        r###"<p>&lt;foo.bar.baz&gt;</p>
+"###,
+        r###"Autolinks (608)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"http://example.com
+"###,
+            DANGER
+        ),
+        r###"<p>http://example.com</p>
+"###,
+        r###"Autolinks (609)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo@bar.example.com
+"###,
+            DANGER
+        ),
+        r###"<p>foo@bar.example.com</p>
+"###,
+        r###"Autolinks (610)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a><bab><c2c>
+"###,
+            DANGER
+        ),
+        r###"<p><a><bab><c2c></p>
+"###,
+        r###"Raw HTML (611)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a/><b2/>
+"###,
+            DANGER
+        ),
+        r###"<p><a/><b2/></p>
+"###,
+        r###"Raw HTML (612)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a  /><b2
+data="foo" >
+"###,
+            DANGER
+        ),
+        r###"<p><a  /><b2
+data="foo" ></p>
+"###,
+        r###"Raw HTML (613)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a foo="bar" bam = 'baz <em>"</em>'
+_boolean zoop:33=zoop:33 />
+"###,
+            DANGER
+        ),
+        r###"<p><a foo="bar" bam = 'baz <em>"</em>'
+_boolean zoop:33=zoop:33 /></p>
+"###,
+        r###"Raw HTML (614)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo <responsive-image src="foo.jpg" />
+"###,
+            DANGER
+        ),
+        r###"<p>Foo <responsive-image src="foo.jpg" /></p>
+"###,
+        r###"Raw HTML (615)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<33> <__>
+"###,
+            DANGER
+        ),
+        r###"<p>&lt;33&gt; &lt;__&gt;</p>
+"###,
+        r###"Raw HTML (616)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a h*#ref="hi">
+"###,
+            DANGER
+        ),
+        r###"<p>&lt;a h*#ref=&quot;hi&quot;&gt;</p>
+"###,
+        r###"Raw HTML (617)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a href="hi'> <a href=hi'>
+"###,
+            DANGER
+        ),
+        r###"<p>&lt;a href=&quot;hi'&gt; &lt;a href=hi'&gt;</p>
+"###,
+        r###"Raw HTML (618)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"< a><
+foo><bar/ >
+<foo bar=baz
+bim!bop />
+"###,
+            DANGER
+        ),
+        r###"<p>&lt; a&gt;&lt;
+foo&gt;&lt;bar/ &gt;
+&lt;foo bar=baz
+bim!bop /&gt;</p>
+"###,
+        r###"Raw HTML (619)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a href='bar'title=title>
+"###,
+            DANGER
+        ),
+        r###"<p>&lt;a href='bar'title=title&gt;</p>
+"###,
+        r###"Raw HTML (620)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"</a></foo >
+"###,
+            DANGER
+        ),
+        r###"<p></a></foo ></p>
+"###,
+        r###"Raw HTML (621)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"</a href="foo">
+"###,
+            DANGER
+        ),
+        r###"<p>&lt;/a href=&quot;foo&quot;&gt;</p>
+"###,
+        r###"Raw HTML (622)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo <!-- this is a
+comment - with hyphen -->
+"###,
+            DANGER
+        ),
+        r###"<p>foo <!-- this is a
+comment - with hyphen --></p>
+"###,
+        r###"Raw HTML (623)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo <!-- not a comment -- two hyphens -->
+"###,
+            DANGER
+        ),
+        r###"<p>foo &lt;!-- not a comment -- two hyphens --&gt;</p>
+"###,
+        r###"Raw HTML (624)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo <!--> foo -->
+
+foo <!-- foo--->
+"###,
+            DANGER
+        ),
+        r###"<p>foo &lt;!--&gt; foo --&gt;</p>
+<p>foo &lt;!-- foo---&gt;</p>
+"###,
+        r###"Raw HTML (625)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo <?php echo $a; ?>
+"###,
+            DANGER
+        ),
+        r###"<p>foo <?php echo $a; ?></p>
+"###,
+        r###"Raw HTML (626)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo <!ELEMENT br EMPTY>
+"###,
+            DANGER
+        ),
+        r###"<p>foo <!ELEMENT br EMPTY></p>
+"###,
+        r###"Raw HTML (627)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo <![CDATA[>&<]]>
+"###,
+            DANGER
+        ),
+        r###"<p>foo <![CDATA[>&<]]></p>
+"###,
+        r###"Raw HTML (628)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo <a href="&ouml;">
+"###,
+            DANGER
+        ),
+        r###"<p>foo <a href="&ouml;"></p>
+"###,
+        r###"Raw HTML (629)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo <a href="\*">
+"###,
+            DANGER
+        ),
+        r###"<p>foo <a href="\*"></p>
+"###,
+        r###"Raw HTML (630)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a href="\"">
+"###,
+            DANGER
+        ),
+        r###"<p>&lt;a href=&quot;&quot;&quot;&gt;</p>
+"###,
+        r###"Raw HTML (631)"###
+    );
+
+    // To do: bug generating this file.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"foo
+    // baz
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<p>foo<br />
+    // baz</p>
+    // "###,
+    //         r###"Hard line breaks (632)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo\
+baz
+"###,
+            DANGER
+        ),
+        r###"<p>foo<br />
+baz</p>
+"###,
+        r###"Hard line breaks (633)"###
+    );
+
+    // To do: bug generating this file.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"foo
+    // baz
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<p>foo<br />
+    // baz</p>
+    // "###,
+    //         r###"Hard line breaks (634)"###
+    //     );
+
+    // To do: bug generating this file.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"foo
+    //      bar
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<p>foo<br />
+    // bar</p>
+    // "###,
+    //         r###"Hard line breaks (635)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo\
+     bar
+"###,
+            DANGER
+        ),
+        r###"<p>foo<br />
+bar</p>
+"###,
+        r###"Hard line breaks (636)"###
+    );
+
+    // To do: bug generating this file.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"*foo
+    // bar*
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<p><em>foo<br />
+    // bar</em></p>
+    // "###,
+    //         r###"Hard line breaks (637)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"*foo\
+bar*
+"###,
+            DANGER
+        ),
+        r###"<p><em>foo<br />
+bar</em></p>
+"###,
+        r###"Hard line breaks (638)"###
+    );
+
+    // To do: bug generating this file.
+    //     assert_eq!(
+    //         micromark_with_options(
+    //             r###"`code
+    // span`
+    // "###,
+    //             DANGER
+    //         ),
+    //         r###"<p><code>code   span</code></p>
+    // "###,
+    //         r###"Hard line breaks (639)"###
+    //     );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"`code\
+span`
+"###,
+            DANGER
+        ),
+        r###"<p><code>code\ span</code></p>
+"###,
+        r###"Hard line breaks (640)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a href="foo
+bar">
+"###,
+            DANGER
+        ),
+        r###"<p><a href="foo
+bar"></p>
+"###,
+        r###"Hard line breaks (641)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"<a href="foo\
+bar">
+"###,
+            DANGER
+        ),
+        r###"<p><a href="foo\
+bar"></p>
+"###,
+        r###"Hard line breaks (642)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo\
+"###,
+            DANGER
+        ),
+        r###"<p>foo\</p>
+"###,
+        r###"Hard line breaks (643)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo
+"###,
+            DANGER
+        ),
+        r###"<p>foo</p>
+"###,
+        r###"Hard line breaks (644)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"### foo\
+"###,
+            DANGER
+        ),
+        r###"<h3>foo\</h3>
+"###,
+        r###"Hard line breaks (645)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"### foo
+"###,
+            DANGER
+        ),
+        r###"<h3>foo</h3>
+"###,
+        r###"Hard line breaks (646)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo
+baz
+"###,
+            DANGER
+        ),
+        r###"<p>foo
+baz</p>
+"###,
+        r###"Soft line breaks (647)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"foo
+ baz
+"###,
+            DANGER
+        ),
+        r###"<p>foo
+baz</p>
+"###,
+        r###"Soft line breaks (648)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"hello $.;'there
+"###,
+            DANGER
+        ),
+        r###"<p>hello $.;'there</p>
+"###,
+        r###"Textual content (649)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Foo χρῆν
+"###,
+            DANGER
+        ),
+        r###"<p>Foo χρῆν</p>
+"###,
+        r###"Textual content (650)"###
+    );
+
+    assert_eq!(
+        micromark_with_options(
+            r###"Multiple     spaces
+"###,
+            DANGER
+        ),
+        r###"<p>Multiple     spaces</p>
+"###,
+        r###"Textual content (651)"###
+    );
+}
-- 
cgit