diff --git a/packages/netlify-cms-widget-markdown/src/serializers/__tests__/__fixtures__/commonmark.json b/packages/netlify-cms-widget-markdown/src/serializers/__tests__/__fixtures__/commonmark.json
new file mode 100644
index 00000000..eb6b4df7
--- /dev/null
+++ b/packages/netlify-cms-widget-markdown/src/serializers/__tests__/__fixtures__/commonmark.json
@@ -0,0 +1,4994 @@
+[
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+    "end_line": 355,
+    "section": "Tabs",
+    "html": "<pre><code>foo\tbaz\t\tbim\n</code></pre>\n",
+    "markdown": "\tfoo\tbaz\t\tbim\n",
+    "example": 1,
+    "start_line": 350
+  },
+  {
+    "end_line": 362,
+    "section": "Tabs",
+    "html": "<pre><code>foo\tbaz\t\tbim\n</code></pre>\n",
+    "markdown": "  \tfoo\tbaz\t\tbim\n",
+    "example": 2,
+    "start_line": 357
+  },
+  {
+    "end_line": 371,
+    "section": "Tabs",
+    "html": "<pre><code>a\ta\nὐ\ta\n</code></pre>\n",
+    "markdown": "    a\ta\n    ὐ\ta\n",
+    "example": 3,
+    "start_line": 364
+  },
+  {
+    "end_line": 388,
+    "section": "Tabs",
+    "html": "<ul>\n<li>\n<p>foo</p>\n<p>bar</p>\n</li>\n</ul>\n",
+    "markdown": "  - foo\n\n\tbar\n",
+    "example": 4,
+    "start_line": 377
+  },
+  {
+    "end_line": 402,
+    "section": "Tabs",
+    "html": "<ul>\n<li>\n<p>foo</p>\n<pre><code>  bar\n</code></pre>\n</li>\n</ul>\n",
+    "markdown": "- foo\n\n\t\tbar\n",
+    "example": 5,
+    "start_line": 390
+  },
+  {
+    "end_line": 420,
+    "section": "Tabs",
+    "html": "<blockquote>\n<pre><code>  foo\n</code></pre>\n</blockquote>\n",
+    "markdown": ">\t\tfoo\n",
+    "example": 6,
+    "start_line": 413
+  },
+  {
+    "end_line": 431,
+    "section": "Tabs",
+    "html": "<ul>\n<li>\n<pre><code>  foo\n</code></pre>\n</li>\n</ul>\n",
+    "markdown": "-\t\tfoo\n",
+    "example": 7,
+    "start_line": 422
+  },
+  {
+    "end_line": 441,
+    "section": "Tabs",
+    "html": "<pre><code>foo\nbar\n</code></pre>\n",
+    "markdown": "    foo\n\tbar\n",
+    "example": 8,
+    "start_line": 434
+  },
+  {
+    "end_line": 459,
+    "section": "Tabs",
+    "html": "<ul>\n<li>foo\n<ul>\n<li>bar\n<ul>\n<li>baz</li>\n</ul>\n</li>\n</ul>\n</li>\n</ul>\n",
+    "markdown": " - foo\n   - bar\n\t - baz\n",
+    "example": 9,
+    "start_line": 443
+  },
+  {
+    "end_line": 465,
+    "section": "Tabs",
+    "html": "<h1>Foo</h1>\n",
+    "markdown": "#\tFoo\n",
+    "example": 10,
+    "start_line": 461
+  },
+  {
+    "end_line": 471,
+    "section": "Tabs",
+    "html": "<hr />\n",
+    "markdown": "*\t*\t*\t\n",
+    "example": 11,
+    "start_line": 467
+  },
+  {
+    "end_line": 502,
+    "section": "Precedence",
+    "html": "<ul>\n<li>`one</li>\n<li>two`</li>\n</ul>\n",
+    "markdown": "- `one\n- two`\n",
+    "example": 12,
+    "start_line": 494
+  },
+  {
+    "end_line": 541,
+    "section": "Thematic breaks",
+    "html": "<hr />\n<hr />\n<hr />\n",
+    "markdown": "***\n---\n___\n",
+    "example": 13,
+    "start_line": 533
+  },
+  {
+    "end_line": 550,
+    "section": "Thematic breaks",
+    "html": "<p>+++</p>\n",
+    "markdown": "+++\n",
+    "example": 14,
+    "start_line": 546
+  },
+  {
+    "end_line": 557,
+    "section": "Thematic breaks",
+    "html": "<p>===</p>\n",
+    "markdown": "===\n",
+    "example": 15,
+    "start_line": 553
+  },
+  {
+    "end_line": 570,
+    "section": "Thematic breaks",
+    "html": "<p>--\n**\n__</p>\n",
+    "markdown": "--\n**\n__\n",
+    "example": 16,
+    "start_line": 562
+  },
+  {
+    "end_line": 583,
+    "section": "Thematic breaks",
+    "html": "<hr />\n<hr />\n<hr />\n",
+    "markdown": " ***\n  ***\n   ***\n",
+    "example": 17,
+    "start_line": 575
+  },
+  {
+    "end_line": 593,
+    "section": "Thematic breaks",
+    "html": "<pre><code>***\n</code></pre>\n",
+    "markdown": "    ***\n",
+    "example": 18,
+    "start_line": 588
+  },
+  {
+    "end_line": 602,
+    "section": "Thematic breaks",
+    "html": "<p>Foo\n***</p>\n",
+    "markdown": "Foo\n    ***\n",
+    "example": 19,
+    "start_line": 596
+  },
+  {
+    "end_line": 611,
+    "section": "Thematic breaks",
+    "html": "<hr />\n",
+    "markdown": "_____________________________________\n",
+    "example": 20,
+    "start_line": 607
+  },
+  {
+    "end_line": 620,
+    "section": "Thematic breaks",
+    "html": "<hr />\n",
+    "markdown": " - - -\n",
+    "example": 21,
+    "start_line": 616
+  },
+  {
+    "end_line": 627,
+    "section": "Thematic breaks",
+    "html": "<hr />\n",
+    "markdown": " **  * ** * ** * **\n",
+    "example": 22,
+    "start_line": 623
+  },
+  {
+    "end_line": 634,
+    "section": "Thematic breaks",
+    "html": "<hr />\n",
+    "markdown": "-     -      -      -\n",
+    "example": 23,
+    "start_line": 630
+  },
+  {
+    "end_line": 643,
+    "section": "Thematic breaks",
+    "html": "<hr />\n",
+    "markdown": "- - - -    \n",
+    "example": 24,
+    "start_line": 639
+  },
+  {
+    "end_line": 658,
+    "section": "Thematic breaks",
+    "html": "<p>_ _ _ _ a</p>\n<p>a------</p>\n<p>---a---</p>\n",
+    "markdown": "_ _ _ _ a\n\na------\n\n---a---\n",
+    "example": 25,
+    "start_line": 648
+  },
+  {
+    "end_line": 668,
+    "section": "Thematic breaks",
+    "html": "<p><em>-</em></p>\n",
+    "markdown": " *-*\n",
+    "example": 26,
+    "start_line": 664
+  },
+  {
+    "end_line": 685,
+    "section": "Thematic breaks",
+    "html": "<ul>\n<li>foo</li>\n</ul>\n<hr />\n<ul>\n<li>bar</li>\n</ul>\n",
+    "markdown": "- foo\n***\n- bar\n",
+    "example": 27,
+    "start_line": 673
+  },
+  {
+    "end_line": 698,
+    "section": "Thematic breaks",
+    "html": "<p>Foo</p>\n<hr />\n<p>bar</p>\n",
+    "markdown": "Foo\n***\nbar\n",
+    "example": 28,
+    "start_line": 690
+  },
+  {
+    "end_line": 714,
+    "section": "Thematic breaks",
+    "html": "<h2>Foo</h2>\n<p>bar</p>\n",
+    "markdown": "Foo\n---\nbar\n",
+    "example": 29,
+    "start_line": 707
+  },
+  {
+    "end_line": 732,
+    "section": "Thematic breaks",
+    "html": "<ul>\n<li>Foo</li>\n</ul>\n<hr />\n<ul>\n<li>Bar</li>\n</ul>\n",
+    "markdown": "* Foo\n* * *\n* Bar\n",
+    "example": 30,
+    "start_line": 720
+  },
+  {
+    "end_line": 747,
+    "section": "Thematic breaks",
+    "html": "<ul>\n<li>Foo</li>\n<li>\n<hr />\n</li>\n</ul>\n",
+    "markdown": "- Foo\n- * * *\n",
+    "example": 31,
+    "start_line": 737
+  },
+  {
+    "end_line": 780,
+    "section": "ATX headings",
+    "html": "<h1>foo</h1>\n<h2>foo</h2>\n<h3>foo</h3>\n<h4>foo</h4>\n<h5>foo</h5>\n<h6>foo</h6>\n",
+    "markdown": "# foo\n## foo\n### foo\n#### foo\n##### foo\n###### foo\n",
+    "example": 32,
+    "start_line": 766
+  },
+  {
+    "end_line": 789,
+    "section": "ATX headings",
+    "html": "<p>####### foo</p>\n",
+    "markdown": "####### foo\n",
+    "example": 33,
+    "start_line": 785
+  },
+  {
+    "end_line": 807,
+    "section": "ATX headings",
+    "html": "<p>#5 bolt</p>\n<p>#hashtag</p>\n",
+    "markdown": "#5 bolt\n\n#hashtag\n",
+    "example": 34,
+    "start_line": 800
+  },
+  {
+    "end_line": 816,
+    "section": "ATX headings",
+    "html": "<p>## foo</p>\n",
+    "markdown": "\\## foo\n",
+    "example": 35,
+    "start_line": 812
+  },
+  {
+    "end_line": 825,
+    "section": "ATX headings",
+    "html": "<h1>foo <em>bar</em> *baz*</h1>\n",
+    "markdown": "# foo *bar* \\*baz\\*\n",
+    "example": 36,
+    "start_line": 821
+  },
+  {
+    "end_line": 834,
+    "section": "ATX headings",
+    "html": "<h1>foo</h1>\n",
+    "markdown": "#                  foo                     \n",
+    "example": 37,
+    "start_line": 830
+  },
+  {
+    "end_line": 847,
+    "section": "ATX headings",
+    "html": "<h3>foo</h3>\n<h2>foo</h2>\n<h1>foo</h1>\n",
+    "markdown": " ### foo\n  ## foo\n   # foo\n",
+    "example": 38,
+    "start_line": 839
+  },
+  {
+    "end_line": 857,
+    "section": "ATX headings",
+    "html": "<pre><code># foo\n</code></pre>\n",
+    "markdown": "    # foo\n",
+    "example": 39,
+    "start_line": 852
+  },
+  {
+    "end_line": 866,
+    "section": "ATX headings",
+    "html": "<p>foo\n# bar</p>\n",
+    "markdown": "foo\n    # bar\n",
+    "example": 40,
+    "start_line": 860
+  },
+  {
+    "end_line": 877,
+    "section": "ATX headings",
+    "html": "<h2>foo</h2>\n<h3>bar</h3>\n",
+    "markdown": "## foo ##\n  ###   bar    ###\n",
+    "example": 41,
+    "start_line": 871
+  },
+  {
+    "end_line": 888,
+    "section": "ATX headings",
+    "html": "<h1>foo</h1>\n<h5>foo</h5>\n",
+    "markdown": "# foo ##################################\n##### foo ##\n",
+    "example": 42,
+    "start_line": 882
+  },
+  {
+    "end_line": 897,
+    "section": "ATX headings",
+    "html": "<h3>foo</h3>\n",
+    "markdown": "### foo ###     \n",
+    "example": 43,
+    "start_line": 893
+  },
+  {
+    "end_line": 908,
+    "section": "ATX headings",
+    "html": "<h3>foo ### b</h3>\n",
+    "markdown": "### foo ### b\n",
+    "example": 44,
+    "start_line": 904
+  },
+  {
+    "end_line": 917,
+    "section": "ATX headings",
+    "html": "<h1>foo#</h1>\n",
+    "markdown": "# foo#\n",
+    "example": 45,
+    "start_line": 913
+  },
+  {
+    "end_line": 931,
+    "section": "ATX headings",
+    "html": "<h3>foo ###</h3>\n<h2>foo ###</h2>\n<h1>foo #</h1>\n",
+    "markdown": "### foo \\###\n## foo #\\##\n# foo \\#\n",
+    "example": 46,
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+  },
+  {
+    "end_line": 945,
+    "section": "ATX headings",
+    "html": "<hr />\n<h2>foo</h2>\n<hr />\n",
+    "markdown": "****\n## foo\n****\n",
+    "example": 47,
+    "start_line": 937
+  },
+  {
+    "end_line": 956,
+    "section": "ATX headings",
+    "html": "<p>Foo bar</p>\n<h1>baz</h1>\n<p>Bar foo</p>\n",
+    "markdown": "Foo bar\n# baz\nBar foo\n",
+    "example": 48,
+    "start_line": 948
+  },
+  {
+    "end_line": 969,
+    "section": "ATX headings",
+    "html": "<h2></h2>\n<h1></h1>\n<h3></h3>\n",
+    "markdown": "## \n#\n### ###\n",
+    "example": 49,
+    "start_line": 961
+  },
+  {
+    "end_line": 1013,
+    "section": "Setext headings",
+    "html": "<h1>Foo <em>bar</em></h1>\n<h2>Foo <em>bar</em></h2>\n",
+    "markdown": "Foo *bar*\n=========\n\nFoo *bar*\n---------\n",
+    "example": 50,
+    "start_line": 1004
+  },
+  {
+    "end_line": 1025,
+    "section": "Setext headings",
+    "html": "<h1>Foo <em>bar\nbaz</em></h1>\n",
+    "markdown": "Foo *bar\nbaz*\n====\n",
+    "example": 51,
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+  },
+  {
+    "end_line": 1039,
+    "section": "Setext headings",
+    "html": "<h2>Foo</h2>\n<h1>Foo</h1>\n",
+    "markdown": "Foo\n-------------------------\n\nFoo\n=\n",
+    "example": 52,
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+  },
+  {
+    "end_line": 1058,
+    "section": "Setext headings",
+    "html": "<h2>Foo</h2>\n<h2>Foo</h2>\n<h1>Foo</h1>\n",
+    "markdown": "   Foo\n---\n\n  Foo\n-----\n\n  Foo\n  ===\n",
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+  },
+  {
+    "end_line": 1076,
+    "section": "Setext headings",
+    "html": "<pre><code>Foo\n---\n\nFoo\n</code></pre>\n<hr />\n",
+    "markdown": "    Foo\n    ---\n\n    Foo\n---\n",
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+  },
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+    "end_line": 1087,
+    "section": "Setext headings",
+    "html": "<h2>Foo</h2>\n",
+    "markdown": "Foo\n   ----      \n",
+    "example": 55,
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+  },
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+    "end_line": 1098,
+    "section": "Setext headings",
+    "html": "<p>Foo\n---</p>\n",
+    "markdown": "Foo\n    ---\n",
+    "example": 56,
+    "start_line": 1092
+  },
+  {
+    "end_line": 1114,
+    "section": "Setext headings",
+    "html": "<p>Foo\n= =</p>\n<p>Foo</p>\n<hr />\n",
+    "markdown": "Foo\n= =\n\nFoo\n--- -\n",
+    "example": 57,
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+  },
+  {
+    "end_line": 1124,
+    "section": "Setext headings",
+    "html": "<h2>Foo</h2>\n",
+    "markdown": "Foo  \n-----\n",
+    "example": 58,
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+  },
+  {
+    "end_line": 1134,
+    "section": "Setext headings",
+    "html": "<h2>Foo\\</h2>\n",
+    "markdown": "Foo\\\n----\n",
+    "example": 59,
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+  },
+  {
+    "end_line": 1153,
+    "section": "Setext headings",
+    "html": "<h2>`Foo</h2>\n<p>`</p>\n<h2>&lt;a title=&quot;a lot</h2>\n<p>of dashes&quot;/&gt;</p>\n",
+    "markdown": "`Foo\n----\n`\n\n<a title=\"a lot\n---\nof dashes\"/>\n",
+    "example": 60,
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+  },
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+    "end_line": 1167,
+    "section": "Setext headings",
+    "html": "<blockquote>\n<p>Foo</p>\n</blockquote>\n<hr />\n",
+    "markdown": "> Foo\n---\n",
+    "example": 61,
+    "start_line": 1159
+  },
+  {
+    "end_line": 1180,
+    "section": "Setext headings",
+    "html": "<blockquote>\n<p>foo\nbar\n===</p>\n</blockquote>\n",
+    "markdown": "> foo\nbar\n===\n",
+    "example": 62,
+    "start_line": 1170
+  },
+  {
+    "end_line": 1191,
+    "section": "Setext headings",
+    "html": "<ul>\n<li>Foo</li>\n</ul>\n<hr />\n",
+    "markdown": "- Foo\n---\n",
+    "example": 63,
+    "start_line": 1183
+  },
+  {
+    "end_line": 1205,
+    "section": "Setext headings",
+    "html": "<h2>Foo\nBar</h2>\n",
+    "markdown": "Foo\nBar\n---\n",
+    "example": 64,
+    "start_line": 1198
+  },
+  {
+    "end_line": 1223,
+    "section": "Setext headings",
+    "html": "<hr />\n<h2>Foo</h2>\n<h2>Bar</h2>\n<p>Baz</p>\n",
+    "markdown": "---\nFoo\n---\nBar\n---\nBaz\n",
+    "example": 65,
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+  },
+  {
+    "end_line": 1233,
+    "section": "Setext headings",
+    "html": "<p>====</p>\n",
+    "markdown": "\n====\n",
+    "example": 66,
+    "start_line": 1228
+  },
+  {
+    "end_line": 1246,
+    "section": "Setext headings",
+    "html": "<hr />\n<hr />\n",
+    "markdown": "---\n---\n",
+    "example": 67,
+    "start_line": 1240
+  },
+  {
+    "end_line": 1257,
+    "section": "Setext headings",
+    "html": "<ul>\n<li>foo</li>\n</ul>\n<hr />\n",
+    "markdown": "- foo\n-----\n",
+    "example": 68,
+    "start_line": 1249
+  },
+  {
+    "end_line": 1267,
+    "section": "Setext headings",
+    "html": "<pre><code>foo\n</code></pre>\n<hr />\n",
+    "markdown": "    foo\n---\n",
+    "example": 69,
+    "start_line": 1260
+  },
+  {
+    "end_line": 1278,
+    "section": "Setext headings",
+    "html": "<blockquote>\n<p>foo</p>\n</blockquote>\n<hr />\n",
+    "markdown": "> foo\n-----\n",
+    "example": 70,
+    "start_line": 1270
+  },
+  {
+    "end_line": 1289,
+    "section": "Setext headings",
+    "html": "<h2>&gt; foo</h2>\n",
+    "markdown": "\\> foo\n------\n",
+    "example": 71,
+    "start_line": 1284
+  },
+  {
+    "end_line": 1325,
+    "section": "Setext headings",
+    "html": "<p>Foo</p>\n<h2>bar</h2>\n<p>baz</p>\n",
+    "markdown": "Foo\n\nbar\n---\nbaz\n",
+    "example": 72,
+    "start_line": 1315
+  },
+  {
+    "end_line": 1343,
+    "section": "Setext headings",
+    "html": "<p>Foo\nbar</p>\n<hr />\n<p>baz</p>\n",
+    "markdown": "Foo\nbar\n\n---\n\nbaz\n",
+    "example": 73,
+    "start_line": 1331
+  },
+  {
+    "end_line": 1359,
+    "section": "Setext headings",
+    "html": "<p>Foo\nbar</p>\n<hr />\n<p>baz</p>\n",
+    "markdown": "Foo\nbar\n* * *\nbaz\n",
+    "example": 74,
+    "start_line": 1349
+  },
+  {
+    "end_line": 1374,
+    "section": "Setext headings",
+    "html": "<p>Foo\nbar\n---\nbaz</p>\n",
+    "markdown": "Foo\nbar\n\\---\nbaz\n",
+    "example": 75,
+    "start_line": 1364
+  },
+  {
+    "end_line": 1399,
+    "section": "Indented code blocks",
+    "html": "<pre><code>a simple\n  indented code block\n</code></pre>\n",
+    "markdown": "    a simple\n      indented code block\n",
+    "example": 76,
+    "start_line": 1392
+  },
+  {
+    "end_line": 1417,
+    "section": "Indented code blocks",
+    "html": "<ul>\n<li>\n<p>foo</p>\n<p>bar</p>\n</li>\n</ul>\n",
+    "markdown": "  - foo\n\n    bar\n",
+    "example": 77,
+    "start_line": 1406
+  },
+  {
+    "end_line": 1433,
+    "section": "Indented code blocks",
+    "html": "<ol>\n<li>\n<p>foo</p>\n<ul>\n<li>bar</li>\n</ul>\n</li>\n</ol>\n",
+    "markdown": "1.  foo\n\n    - bar\n",
+    "example": 78,
+    "start_line": 1420
+  },
+  {
+    "end_line": 1451,
+    "section": "Indented code blocks",
+    "html": "<pre><code>&lt;a/&gt;\n*hi*\n\n- one\n</code></pre>\n",
+    "markdown": "    <a/>\n    *hi*\n\n    - one\n",
+    "example": 79,
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+  },
+  {
+    "end_line": 1473,
+    "section": "Indented code blocks",
+    "html": "<pre><code>chunk1\n\nchunk2\n\n\n\nchunk3\n</code></pre>\n",
+    "markdown": "    chunk1\n\n    chunk2\n  \n \n \n    chunk3\n",
+    "example": 80,
+    "start_line": 1456
+  },
+  {
+    "end_line": 1488,
+    "section": "Indented code blocks",
+    "html": "<pre><code>chunk1\n  \n  chunk2\n</code></pre>\n",
+    "markdown": "    chunk1\n      \n      chunk2\n",
+    "example": 81,
+    "start_line": 1479
+  },
+  {
+    "end_line": 1501,
+    "section": "Indented code blocks",
+    "html": "<p>Foo\nbar</p>\n",
+    "markdown": "Foo\n    bar\n\n",
+    "example": 82,
+    "start_line": 1494
+  },
+  {
+    "end_line": 1515,
+    "section": "Indented code blocks",
+    "html": "<pre><code>foo\n</code></pre>\n<p>bar</p>\n",
+    "markdown": "    foo\nbar\n",
+    "example": 83,
+    "start_line": 1508
+  },
+  {
+    "end_line": 1536,
+    "section": "Indented code blocks",
+    "html": "<h1>Heading</h1>\n<pre><code>foo\n</code></pre>\n<h2>Heading</h2>\n<pre><code>foo\n</code></pre>\n<hr />\n",
+    "markdown": "# Heading\n    foo\nHeading\n------\n    foo\n----\n",
+    "example": 84,
+    "start_line": 1521
+  },
+  {
+    "end_line": 1548,
+    "section": "Indented code blocks",
+    "html": "<pre><code>    foo\nbar\n</code></pre>\n",
+    "markdown": "        foo\n    bar\n",
+    "example": 85,
+    "start_line": 1541
+  },
+  {
+    "end_line": 1563,
+    "section": "Indented code blocks",
+    "html": "<pre><code>foo\n</code></pre>\n",
+    "markdown": "\n    \n    foo\n    \n\n",
+    "example": 86,
+    "start_line": 1554
+  },
+  {
+    "end_line": 1573,
+    "section": "Indented code blocks",
+    "html": "<pre><code>foo  \n</code></pre>\n",
+    "markdown": "    foo  \n",
+    "example": 87,
+    "start_line": 1568
+  },
+  {
+    "end_line": 1632,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>&lt;\n &gt;\n</code></pre>\n",
+    "markdown": "```\n<\n >\n```\n",
+    "example": 88,
+    "start_line": 1623
+  },
+  {
+    "end_line": 1646,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>&lt;\n &gt;\n</code></pre>\n",
+    "markdown": "~~~\n<\n >\n~~~\n",
+    "example": 89,
+    "start_line": 1637
+  },
+  {
+    "end_line": 1656,
+    "section": "Fenced code blocks",
+    "html": "<p><code>foo</code></p>\n",
+    "markdown": "``\nfoo\n``\n",
+    "example": 90,
+    "start_line": 1650
+  },
+  {
+    "end_line": 1670,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>aaa\n~~~\n</code></pre>\n",
+    "markdown": "```\naaa\n~~~\n```\n",
+    "example": 91,
+    "start_line": 1661
+  },
+  {
+    "end_line": 1682,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>aaa\n```\n</code></pre>\n",
+    "markdown": "~~~\naaa\n```\n~~~\n",
+    "example": 92,
+    "start_line": 1673
+  },
+  {
+    "end_line": 1696,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>aaa\n```\n</code></pre>\n",
+    "markdown": "````\naaa\n```\n``````\n",
+    "example": 93,
+    "start_line": 1687
+  },
+  {
+    "end_line": 1708,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>aaa\n~~~\n</code></pre>\n",
+    "markdown": "~~~~\naaa\n~~~\n~~~~\n",
+    "example": 94,
+    "start_line": 1699
+  },
+  {
+    "end_line": 1718,
+    "section": "Fenced code blocks",
+    "html": "<pre><code></code></pre>\n",
+    "markdown": "```\n",
+    "example": 95,
+    "start_line": 1714
+  },
+  {
+    "end_line": 1731,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>\n```\naaa\n</code></pre>\n",
+    "markdown": "`````\n\n```\naaa\n",
+    "example": 96,
+    "start_line": 1721
+  },
+  {
+    "end_line": 1745,
+    "section": "Fenced code blocks",
+    "html": "<blockquote>\n<pre><code>aaa\n</code></pre>\n</blockquote>\n<p>bbb</p>\n",
+    "markdown": "> ```\n> aaa\n\nbbb\n",
+    "example": 97,
+    "start_line": 1734
+  },
+  {
+    "end_line": 1759,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>\n  \n</code></pre>\n",
+    "markdown": "```\n\n  \n```\n",
+    "example": 98,
+    "start_line": 1750
+  },
+  {
+    "end_line": 1769,
+    "section": "Fenced code blocks",
+    "html": "<pre><code></code></pre>\n",
+    "markdown": "```\n```\n",
+    "example": 99,
+    "start_line": 1764
+  },
+  {
+    "end_line": 1785,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>aaa\naaa\n</code></pre>\n",
+    "markdown": " ```\n aaa\naaa\n```\n",
+    "example": 100,
+    "start_line": 1776
+  },
+  {
+    "end_line": 1799,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>aaa\naaa\naaa\n</code></pre>\n",
+    "markdown": "  ```\naaa\n  aaa\naaa\n  ```\n",
+    "example": 101,
+    "start_line": 1788
+  },
+  {
+    "end_line": 1813,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>aaa\n aaa\naaa\n</code></pre>\n",
+    "markdown": "   ```\n   aaa\n    aaa\n  aaa\n   ```\n",
+    "example": 102,
+    "start_line": 1802
+  },
+  {
+    "end_line": 1827,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>```\naaa\n```\n</code></pre>\n",
+    "markdown": "    ```\n    aaa\n    ```\n",
+    "example": 103,
+    "start_line": 1818
+  },
+  {
+    "end_line": 1840,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>aaa\n</code></pre>\n",
+    "markdown": "```\naaa\n  ```\n",
+    "example": 104,
+    "start_line": 1833
+  },
+  {
+    "end_line": 1850,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>aaa\n</code></pre>\n",
+    "markdown": "   ```\naaa\n  ```\n",
+    "example": 105,
+    "start_line": 1843
+  },
+  {
+    "end_line": 1863,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>aaa\n    ```\n</code></pre>\n",
+    "markdown": "```\naaa\n    ```\n",
+    "example": 106,
+    "start_line": 1855
+  },
+  {
+    "end_line": 1875,
+    "section": "Fenced code blocks",
+    "html": "<p><code></code>\naaa</p>\n",
+    "markdown": "``` ```\naaa\n",
+    "example": 107,
+    "start_line": 1869
+  },
+  {
+    "end_line": 1886,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>aaa\n~~~ ~~\n</code></pre>\n",
+    "markdown": "~~~~~~\naaa\n~~~ ~~\n",
+    "example": 108,
+    "start_line": 1878
+  },
+  {
+    "end_line": 1903,
+    "section": "Fenced code blocks",
+    "html": "<p>foo</p>\n<pre><code>bar\n</code></pre>\n<p>baz</p>\n",
+    "markdown": "foo\n```\nbar\n```\nbaz\n",
+    "example": 109,
+    "start_line": 1892
+  },
+  {
+    "end_line": 1921,
+    "section": "Fenced code blocks",
+    "html": "<h2>foo</h2>\n<pre><code>bar\n</code></pre>\n<h1>baz</h1>\n",
+    "markdown": "foo\n---\n~~~\nbar\n~~~\n# baz\n",
+    "example": 110,
+    "start_line": 1909
+  },
+  {
+    "end_line": 1940,
+    "section": "Fenced code blocks",
+    "html": "<pre><code class=\"language-ruby\">def foo(x)\n  return 3\nend\n</code></pre>\n",
+    "markdown": "```ruby\ndef foo(x)\n  return 3\nend\n```\n",
+    "example": 111,
+    "start_line": 1929
+  },
+  {
+    "end_line": 1954,
+    "section": "Fenced code blocks",
+    "html": "<pre><code class=\"language-ruby\">def foo(x)\n  return 3\nend\n</code></pre>\n",
+    "markdown": "~~~~    ruby startline=3 $%@#$\ndef foo(x)\n  return 3\nend\n~~~~~~~\n",
+    "example": 112,
+    "start_line": 1943
+  },
+  {
+    "end_line": 1962,
+    "section": "Fenced code blocks",
+    "html": "<pre><code class=\"language-;\"></code></pre>\n",
+    "markdown": "````;\n````\n",
+    "example": 113,
+    "start_line": 1957
+  },
+  {
+    "end_line": 1973,
+    "section": "Fenced code blocks",
+    "html": "<p><code>aa</code>\nfoo</p>\n",
+    "markdown": "``` aa ```\nfoo\n",
+    "example": 114,
+    "start_line": 1967
+  },
+  {
+    "end_line": 1985,
+    "section": "Fenced code blocks",
+    "html": "<pre><code>``` aaa\n</code></pre>\n",
+    "markdown": "```\n``` aaa\n```\n",
+    "example": 115,
+    "start_line": 1978
+  },
+  {
+    "end_line": 2070,
+    "section": "HTML blocks",
+    "html": "<table><tr><td>\n<pre>\n**Hello**,\n<p><em>world</em>.\n</pre></p>\n</td></tr></table>\n",
+    "markdown": "<table><tr><td>\n<pre>\n**Hello**,\n\n_world_.\n</pre>\n</td></tr></table>\n",
+    "example": 116,
+    "start_line": 2055
+  },
+  {
+    "end_line": 2103,
+    "section": "HTML blocks",
+    "html": "<table>\n  <tr>\n    <td>\n           hi\n    </td>\n  </tr>\n</table>\n<p>okay.</p>\n",
+    "markdown": "<table>\n  <tr>\n    <td>\n           hi\n    </td>\n  </tr>\n</table>\n\nokay.\n",
+    "example": 117,
+    "start_line": 2084
+  },
+  {
+    "end_line": 2114,
+    "section": "HTML blocks",
+    "html": " <div>\n  *hello*\n         <foo><a>\n",
+    "markdown": " <div>\n  *hello*\n         <foo><a>\n",
+    "example": 118,
+    "start_line": 2106
+  },
+  {
+    "end_line": 2125,
+    "section": "HTML blocks",
+    "html": "</div>\n*foo*\n",
+    "markdown": "</div>\n*foo*\n",
+    "example": 119,
+    "start_line": 2119
+  },
+  {
+    "end_line": 2140,
+    "section": "HTML blocks",
+    "html": "<DIV CLASS=\"foo\">\n<p><em>Markdown</em></p>\n</DIV>\n",
+    "markdown": "<DIV CLASS=\"foo\">\n\n*Markdown*\n\n</DIV>\n",
+    "example": 120,
+    "start_line": 2130
+  },
+  {
+    "end_line": 2154,
+    "section": "HTML blocks",
+    "html": "<div id=\"foo\"\n  class=\"bar\">\n</div>\n",
+    "markdown": "<div id=\"foo\"\n  class=\"bar\">\n</div>\n",
+    "example": 121,
+    "start_line": 2146
+  },
+  {
+    "end_line": 2165,
+    "section": "HTML blocks",
+    "html": "<div id=\"foo\" class=\"bar\n  baz\">\n</div>\n",
+    "markdown": "<div id=\"foo\" class=\"bar\n  baz\">\n</div>\n",
+    "example": 122,
+    "start_line": 2157
+  },
+  {
+    "end_line": 2178,
+    "section": "HTML blocks",
+    "html": "<div>\n*foo*\n<p><em>bar</em></p>\n",
+    "markdown": "<div>\n*foo*\n\n*bar*\n",
+    "example": 123,
+    "start_line": 2169
+  },
+  {
+    "end_line": 2191,
+    "section": "HTML blocks",
+    "html": "<div id=\"foo\"\n*hi*\n",
+    "markdown": "<div id=\"foo\"\n*hi*\n",
+    "example": 124,
+    "start_line": 2185
+  },
+  {
+    "end_line": 2200,
+    "section": "HTML blocks",
+    "html": "<div class\nfoo\n",
+    "markdown": "<div class\nfoo\n",
+    "example": 125,
+    "start_line": 2194
+  },
+  {
+    "end_line": 2212,
+    "section": "HTML blocks",
+    "html": "<div *???-&&&-<---\n*foo*\n",
+    "markdown": "<div *???-&&&-<---\n*foo*\n",
+    "example": 126,
+    "start_line": 2206
+  },
+  {
+    "end_line": 2222,
+    "section": "HTML blocks",
+    "html": "<div><a href=\"bar\">*foo*</a></div>\n",
+    "markdown": "<div><a href=\"bar\">*foo*</a></div>\n",
+    "example": 127,
+    "start_line": 2218
+  },
+  {
+    "end_line": 2233,
+    "section": "HTML blocks",
+    "html": "<table><tr><td>\nfoo\n</td></tr></table>\n",
+    "markdown": "<table><tr><td>\nfoo\n</td></tr></table>\n",
+    "example": 128,
+    "start_line": 2225
+  },
+  {
+    "end_line": 2252,
+    "section": "HTML blocks",
+    "html": "<div></div>\n``` c\nint x = 33;\n```\n",
+    "markdown": "<div></div>\n``` c\nint x = 33;\n```\n",
+    "example": 129,
+    "start_line": 2242
+  },
+  {
+    "end_line": 2267,
+    "section": "HTML blocks",
+    "html": "<a href=\"foo\">\n*bar*\n</a>\n",
+    "markdown": "<a href=\"foo\">\n*bar*\n</a>\n",
+    "example": 130,
+    "start_line": 2259
+  },
+  {
+    "end_line": 2280,
+    "section": "HTML blocks",
+    "html": "<Warning>\n*bar*\n</Warning>\n",
+    "markdown": "<Warning>\n*bar*\n</Warning>\n",
+    "example": 131,
+    "start_line": 2272
+  },
+  {
+    "end_line": 2291,
+    "section": "HTML blocks",
+    "html": "<i class=\"foo\">\n*bar*\n</i>\n",
+    "markdown": "<i class=\"foo\">\n*bar*\n</i>\n",
+    "example": 132,
+    "start_line": 2283
+  },
+  {
+    "end_line": 2300,
+    "section": "HTML blocks",
+    "html": "</ins>\n*bar*\n",
+    "markdown": "</ins>\n*bar*\n",
+    "example": 133,
+    "start_line": 2294
+  },
+  {
+    "end_line": 2317,
+    "section": "HTML blocks",
+    "html": "<del>\n*foo*\n</del>\n",
+    "markdown": "<del>\n*foo*\n</del>\n",
+    "example": 134,
+    "start_line": 2309
+  },
+  {
+    "end_line": 2334,
+    "section": "HTML blocks",
+    "html": "<del>\n<p><em>foo</em></p>\n</del>\n",
+    "markdown": "<del>\n\n*foo*\n\n</del>\n",
+    "example": 135,
+    "start_line": 2324
+  },
+  {
+    "end_line": 2346,
+    "section": "HTML blocks",
+    "html": "<p><del><em>foo</em></del></p>\n",
+    "markdown": "<del>*foo*</del>\n",
+    "example": 136,
+    "start_line": 2342
+  },
+  {
+    "end_line": 2374,
+    "section": "HTML blocks",
+    "html": "<pre language=\"haskell\"><code>\nimport Text.HTML.TagSoup\n\nmain :: IO ()\nmain = print $ parseTags tags\n</code></pre>\n<p>okay</p>\n",
+    "markdown": "<pre language=\"haskell\"><code>\nimport Text.HTML.TagSoup\n\nmain :: IO ()\nmain = print $ parseTags tags\n</code></pre>\nokay\n",
+    "example": 137,
+    "start_line": 2358
+  },
+  {
+    "end_line": 2393,
+    "section": "HTML blocks",
+    "html": "<script type=\"text/javascript\">\n// JavaScript example\n\ndocument.getElementById(\"demo\").innerHTML = \"Hello JavaScript!\";\n</script>\n<p>okay</p>\n",
+    "markdown": "<script type=\"text/javascript\">\n// JavaScript example\n\ndocument.getElementById(\"demo\").innerHTML = \"Hello JavaScript!\";\n</script>\nokay\n",
+    "example": 138,
+    "start_line": 2379
+  },
+  {
+    "end_line": 2414,
+    "section": "HTML blocks",
+    "html": "<style\n  type=\"text/css\">\nh1 {color:red;}\n\np {color:blue;}\n</style>\n<p>okay</p>\n",
+    "markdown": "<style\n  type=\"text/css\">\nh1 {color:red;}\n\np {color:blue;}\n</style>\nokay\n",
+    "example": 139,
+    "start_line": 2398
+  },
+  {
+    "end_line": 2431,
+    "section": "HTML blocks",
+    "html": "<style\n  type=\"text/css\">\n\nfoo\n",
+    "markdown": "<style\n  type=\"text/css\">\n\nfoo\n",
+    "example": 140,
+    "start_line": 2421
+  },
+  {
+    "end_line": 2445,
+    "section": "HTML blocks",
+    "html": "<blockquote>\n<div>\nfoo\n</blockquote>\n<p>bar</p>\n",
+    "markdown": "> <div>\n> foo\n\nbar\n",
+    "example": 141,
+    "start_line": 2434
+  },
+  {
+    "end_line": 2458,
+    "section": "HTML blocks",
+    "html": "<ul>\n<li>\n<div>\n</li>\n<li>foo</li>\n</ul>\n",
+    "markdown": "- <div>\n- foo\n",
+    "example": 142,
+    "start_line": 2448
+  },
+  {
+    "end_line": 2469,
+    "section": "HTML blocks",
+    "html": "<style>p{color:red;}</style>\n<p><em>foo</em></p>\n",
+    "markdown": "<style>p{color:red;}</style>\n*foo*\n",
+    "example": 143,
+    "start_line": 2463
+  },
+  {
+    "end_line": 2478,
+    "section": "HTML blocks",
+    "html": "<!-- foo -->*bar*\n<p><em>baz</em></p>\n",
+    "markdown": "<!-- foo -->*bar*\n*baz*\n",
+    "example": 144,
+    "start_line": 2472
+  },
+  {
+    "end_line": 2492,
+    "section": "HTML blocks",
+    "html": "<script>\nfoo\n</script>1. *bar*\n",
+    "markdown": "<script>\nfoo\n</script>1. *bar*\n",
+    "example": 145,
+    "start_line": 2484
+  },
+  {
+    "end_line": 2509,
+    "section": "HTML blocks",
+    "html": "<!-- Foo\n\nbar\n   baz -->\n<p>okay</p>\n",
+    "markdown": "<!-- Foo\n\nbar\n   baz -->\nokay\n",
+    "example": 146,
+    "start_line": 2497
+  },
+  {
+    "end_line": 2529,
+    "section": "HTML blocks",
+    "html": "<?php\n\n  echo '>';\n\n?>\n<p>okay</p>\n",
+    "markdown": "<?php\n\n  echo '>';\n\n?>\nokay\n",
+    "example": 147,
+    "start_line": 2515
+  },
+  {
+    "end_line": 2538,
+    "section": "HTML blocks",
+    "html": "<!DOCTYPE html>\n",
+    "markdown": "<!DOCTYPE html>\n",
+    "example": 148,
+    "start_line": 2534
+  },
+  {
+    "end_line": 2571,
+    "section": "HTML blocks",
+    "html": "<![CDATA[\nfunction matchwo(a,b)\n{\n  if (a < b && a < 0) then {\n    return 1;\n\n  } else {\n\n    return 0;\n  }\n}\n]]>\n<p>okay</p>\n",
+    "markdown": "<![CDATA[\nfunction matchwo(a,b)\n{\n  if (a < b && a < 0) then {\n    return 1;\n\n  } else {\n\n    return 0;\n  }\n}\n]]>\nokay\n",
+    "example": 149,
+    "start_line": 2543
+  },
+  {
+    "end_line": 2584,
+    "section": "HTML blocks",
+    "html": "  <!-- foo -->\n<pre><code>&lt;!-- foo --&gt;\n</code></pre>\n",
+    "markdown": "  <!-- foo -->\n\n    <!-- foo -->\n",
+    "example": 150,
+    "start_line": 2576
+  },
+  {
+    "end_line": 2595,
+    "section": "HTML blocks",
+    "html": "  <div>\n<pre><code>&lt;div&gt;\n</code></pre>\n",
+    "markdown": "  <div>\n\n    <div>\n",
+    "example": 151,
+    "start_line": 2587
+  },
+  {
+    "end_line": 2611,
+    "section": "HTML blocks",
+    "html": "<p>Foo</p>\n<div>\nbar\n</div>\n",
+    "markdown": "Foo\n<div>\nbar\n</div>\n",
+    "example": 152,
+    "start_line": 2601
+  },
+  {
+    "end_line": 2627,
+    "section": "HTML blocks",
+    "html": "<div>\nbar\n</div>\n*foo*\n",
+    "markdown": "<div>\nbar\n</div>\n*foo*\n",
+    "example": 153,
+    "start_line": 2617
+  },
+  {
+    "end_line": 2640,
+    "section": "HTML blocks",
+    "html": "<p>Foo\n<a href=\"bar\">\nbaz</p>\n",
+    "markdown": "Foo\n<a href=\"bar\">\nbaz\n",
+    "example": 154,
+    "start_line": 2632
+  },
+  {
+    "end_line": 2683,
+    "section": "HTML blocks",
+    "html": "<div>\n<p><em>Emphasized</em> text.</p>\n</div>\n",
+    "markdown": "<div>\n\n*Emphasized* text.\n\n</div>\n",
+    "example": 155,
+    "start_line": 2673
+  },
+  {
+    "end_line": 2694,
+    "section": "HTML blocks",
+    "html": "<div>\n*Emphasized* text.\n</div>\n",
+    "markdown": "<div>\n*Emphasized* text.\n</div>\n",
+    "example": 156,
+    "start_line": 2686
+  },
+  {
+    "end_line": 2728,
+    "section": "HTML blocks",
+    "html": "<table>\n<tr>\n<td>\nHi\n</td>\n</tr>\n</table>\n",
+    "markdown": "<table>\n\n<tr>\n\n<td>\nHi\n</td>\n\n</tr>\n\n</table>\n",
+    "example": 157,
+    "start_line": 2708
+  },
+  {
+    "end_line": 2756,
+    "section": "HTML blocks",
+    "html": "<table>\n  <tr>\n<pre><code>&lt;td&gt;\n  Hi\n&lt;/td&gt;\n</code></pre>\n  </tr>\n</table>\n",
+    "markdown": "<table>\n\n  <tr>\n\n    <td>\n      Hi\n    </td>\n\n  </tr>\n\n</table>\n",
+    "example": 158,
+    "start_line": 2735
+  },
+  {
+    "end_line": 2789,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"/url\" title=\"title\">foo</a></p>\n",
+    "markdown": "[foo]: /url \"title\"\n\n[foo]\n",
+    "example": 159,
+    "start_line": 2783
+  },
+  {
+    "end_line": 2800,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"/url\" title=\"the title\">foo</a></p>\n",
+    "markdown": "   [foo]: \n      /url  \n           'the title'  \n\n[foo]\n",
+    "example": 160,
+    "start_line": 2792
+  },
+  {
+    "end_line": 2809,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"my_(url)\" title=\"title (with parens)\">Foo*bar]</a></p>\n",
+    "markdown": "[Foo*bar\\]]:my_(url) 'title (with parens)'\n\n[Foo*bar\\]]\n",
+    "example": 161,
+    "start_line": 2803
+  },
+  {
+    "end_line": 2820,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"my%20url\" title=\"title\">Foo bar</a></p>\n",
+    "markdown": "[Foo bar]:\n<my%20url>\n'title'\n\n[Foo bar]\n",
+    "example": 162,
+    "start_line": 2812
+  },
+  {
+    "end_line": 2839,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"/url\" title=\"\ntitle\nline1\nline2\n\">foo</a></p>\n",
+    "markdown": "[foo]: /url '\ntitle\nline1\nline2\n'\n\n[foo]\n",
+    "example": 163,
+    "start_line": 2825
+  },
+  {
+    "end_line": 2854,
+    "section": "Link reference definitions",
+    "html": "<p>[foo]: /url 'title</p>\n<p>with blank line'</p>\n<p>[foo]</p>\n",
+    "markdown": "[foo]: /url 'title\n\nwith blank line'\n\n[foo]\n",
+    "example": 164,
+    "start_line": 2844
+  },
+  {
+    "end_line": 2866,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"/url\">foo</a></p>\n",
+    "markdown": "[foo]:\n/url\n\n[foo]\n",
+    "example": 165,
+    "start_line": 2859
+  },
+  {
+    "end_line": 2878,
+    "section": "Link reference definitions",
+    "html": "<p>[foo]:</p>\n<p>[foo]</p>\n",
+    "markdown": "[foo]:\n\n[foo]\n",
+    "example": 166,
+    "start_line": 2871
+  },
+  {
+    "end_line": 2890,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"/url%5Cbar*baz\" title=\"foo&quot;bar\\baz\">foo</a></p>\n",
+    "markdown": "[foo]: /url\\bar\\*baz \"foo\\\"bar\\baz\"\n\n[foo]\n",
+    "example": 167,
+    "start_line": 2884
+  },
+  {
+    "end_line": 2901,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"url\">foo</a></p>\n",
+    "markdown": "[foo]\n\n[foo]: url\n",
+    "example": 168,
+    "start_line": 2895
+  },
+  {
+    "end_line": 2914,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"first\">foo</a></p>\n",
+    "markdown": "[foo]\n\n[foo]: first\n[foo]: second\n",
+    "example": 169,
+    "start_line": 2907
+  },
+  {
+    "end_line": 2926,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"/url\">Foo</a></p>\n",
+    "markdown": "[FOO]: /url\n\n[Foo]\n",
+    "example": 170,
+    "start_line": 2920
+  },
+  {
+    "end_line": 2935,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"/%CF%86%CE%BF%CF%85\">αγω</a></p>\n",
+    "markdown": "[ΑΓΩ]: /φου\n\n[αγω]\n",
+    "example": 171,
+    "start_line": 2929
+  },
+  {
+    "end_line": 2944,
+    "section": "Link reference definitions",
+    "html": "",
+    "markdown": "[foo]: /url\n",
+    "example": 172,
+    "start_line": 2941
+  },
+  {
+    "end_line": 2956,
+    "section": "Link reference definitions",
+    "html": "<p>bar</p>\n",
+    "markdown": "[\nfoo\n]: /url\nbar\n",
+    "example": 173,
+    "start_line": 2949
+  },
+  {
+    "end_line": 2966,
+    "section": "Link reference definitions",
+    "html": "<p>[foo]: /url &quot;title&quot; ok</p>\n",
+    "markdown": "[foo]: /url \"title\" ok\n",
+    "example": 174,
+    "start_line": 2962
+  },
+  {
+    "end_line": 2976,
+    "section": "Link reference definitions",
+    "html": "<p>&quot;title&quot; ok</p>\n",
+    "markdown": "[foo]: /url\n\"title\" ok\n",
+    "example": 175,
+    "start_line": 2971
+  },
+  {
+    "end_line": 2990,
+    "section": "Link reference definitions",
+    "html": "<pre><code>[foo]: /url &quot;title&quot;\n</code></pre>\n<p>[foo]</p>\n",
+    "markdown": "    [foo]: /url \"title\"\n\n[foo]\n",
+    "example": 176,
+    "start_line": 2982
+  },
+  {
+    "end_line": 3006,
+    "section": "Link reference definitions",
+    "html": "<pre><code>[foo]: /url\n</code></pre>\n<p>[foo]</p>\n",
+    "markdown": "```\n[foo]: /url\n```\n\n[foo]\n",
+    "example": 177,
+    "start_line": 2996
+  },
+  {
+    "end_line": 3020,
+    "section": "Link reference definitions",
+    "html": "<p>Foo\n[bar]: /baz</p>\n<p>[bar]</p>\n",
+    "markdown": "Foo\n[bar]: /baz\n\n[bar]\n",
+    "example": 178,
+    "start_line": 3011
+  },
+  {
+    "end_line": 3035,
+    "section": "Link reference definitions",
+    "html": "<h1><a href=\"/url\">Foo</a></h1>\n<blockquote>\n<p>bar</p>\n</blockquote>\n",
+    "markdown": "# [Foo]\n[foo]: /url\n> bar\n",
+    "example": 179,
+    "start_line": 3026
+  },
+  {
+    "end_line": 3054,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"/foo-url\" title=\"foo\">foo</a>,\n<a href=\"/bar-url\" title=\"bar\">bar</a>,\n<a href=\"/baz-url\">baz</a></p>\n",
+    "markdown": "[foo]: /foo-url \"foo\"\n[bar]: /bar-url\n  \"bar\"\n[baz]: /baz-url\n\n[foo],\n[bar],\n[baz]\n",
+    "example": 180,
+    "start_line": 3041
+  },
+  {
+    "end_line": 3070,
+    "section": "Link reference definitions",
+    "html": "<p><a href=\"/url\">foo</a></p>\n<blockquote>\n</blockquote>\n",
+    "markdown": "[foo]\n\n> [foo]: /url\n",
+    "example": 181,
+    "start_line": 3062
+  },
+  {
+    "end_line": 3092,
+    "section": "Paragraphs",
+    "html": "<p>aaa</p>\n<p>bbb</p>\n",
+    "markdown": "aaa\n\nbbb\n",
+    "example": 182,
+    "start_line": 3085
+  },
+  {
+    "end_line": 3108,
+    "section": "Paragraphs",
+    "html": "<p>aaa\nbbb</p>\n<p>ccc\nddd</p>\n",
+    "markdown": "aaa\nbbb\n\nccc\nddd\n",
+    "example": 183,
+    "start_line": 3097
+  },
+  {
+    "end_line": 3121,
+    "section": "Paragraphs",
+    "html": "<p>aaa</p>\n<p>bbb</p>\n",
+    "markdown": "aaa\n\n\nbbb\n",
+    "example": 184,
+    "start_line": 3113
+  },
+  {
+    "end_line": 3132,
+    "section": "Paragraphs",
+    "html": "<p>aaa\nbbb</p>\n",
+    "markdown": "  aaa\n bbb\n",
+    "example": 185,
+    "start_line": 3126
+  },
+  {
+    "end_line": 3146,
+    "section": "Paragraphs",
+    "html": "<p>aaa\nbbb\nccc</p>\n",
+    "markdown": "aaa\n             bbb\n                                       ccc\n",
+    "example": 186,
+    "start_line": 3138
+  },
+  {
+    "end_line": 3158,
+    "section": "Paragraphs",
+    "html": "<p>aaa\nbbb</p>\n",
+    "markdown": "   aaa\nbbb\n",
+    "example": 187,
+    "start_line": 3152
+  },
+  {
+    "end_line": 3168,
+    "section": "Paragraphs",
+    "html": "<pre><code>aaa\n</code></pre>\n<p>bbb</p>\n",
+    "markdown": "    aaa\nbbb\n",
+    "example": 188,
+    "start_line": 3161
+  },
+  {
+    "end_line": 3181,
+    "section": "Paragraphs",
+    "html": "<p>aaa<br />\nbbb</p>\n",
+    "markdown": "aaa     \nbbb     \n",
+    "example": 189,
+    "start_line": 3175
+  },
+  {
+    "end_line": 3204,
+    "section": "Blank lines",
+    "html": "<p>aaa</p>\n<h1>aaa</h1>\n",
+    "markdown": "  \n\naaa\n  \n\n# aaa\n\n  \n",
+    "example": 190,
+    "start_line": 3192
+  },
+  {
+    "end_line": 3268,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<h1>Foo</h1>\n<p>bar\nbaz</p>\n</blockquote>\n",
+    "markdown": "> # Foo\n> bar\n> baz\n",
+    "example": 191,
+    "start_line": 3258
+  },
+  {
+    "end_line": 3283,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<h1>Foo</h1>\n<p>bar\nbaz</p>\n</blockquote>\n",
+    "markdown": "># Foo\n>bar\n> baz\n",
+    "example": 192,
+    "start_line": 3273
+  },
+  {
+    "end_line": 3298,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<h1>Foo</h1>\n<p>bar\nbaz</p>\n</blockquote>\n",
+    "markdown": "   > # Foo\n   > bar\n > baz\n",
+    "example": 193,
+    "start_line": 3288
+  },
+  {
+    "end_line": 3312,
+    "section": "Block quotes",
+    "html": "<pre><code>&gt; # Foo\n&gt; bar\n&gt; baz\n</code></pre>\n",
+    "markdown": "    > # Foo\n    > bar\n    > baz\n",
+    "example": 194,
+    "start_line": 3303
+  },
+  {
+    "end_line": 3328,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<h1>Foo</h1>\n<p>bar\nbaz</p>\n</blockquote>\n",
+    "markdown": "> # Foo\n> bar\nbaz\n",
+    "example": 195,
+    "start_line": 3318
+  },
+  {
+    "end_line": 3344,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<p>bar\nbaz\nfoo</p>\n</blockquote>\n",
+    "markdown": "> bar\nbaz\n> foo\n",
+    "example": 196,
+    "start_line": 3334
+  },
+  {
+    "end_line": 3366,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<p>foo</p>\n</blockquote>\n<hr />\n",
+    "markdown": "> foo\n---\n",
+    "example": 197,
+    "start_line": 3358
+  },
+  {
+    "end_line": 3390,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<ul>\n<li>foo</li>\n</ul>\n</blockquote>\n<ul>\n<li>bar</li>\n</ul>\n",
+    "markdown": "> - foo\n- bar\n",
+    "example": 198,
+    "start_line": 3378
+  },
+  {
+    "end_line": 3406,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<pre><code>foo\n</code></pre>\n</blockquote>\n<pre><code>bar\n</code></pre>\n",
+    "markdown": ">     foo\n    bar\n",
+    "example": 199,
+    "start_line": 3396
+  },
+  {
+    "end_line": 3419,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<pre><code></code></pre>\n</blockquote>\n<p>foo</p>\n<pre><code></code></pre>\n",
+    "markdown": "> ```\nfoo\n```\n",
+    "example": 200,
+    "start_line": 3409
+  },
+  {
+    "end_line": 3433,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<p>foo\n- bar</p>\n</blockquote>\n",
+    "markdown": "> foo\n    - bar\n",
+    "example": 201,
+    "start_line": 3425
+  },
+  {
+    "end_line": 3454,
+    "section": "Block quotes",
+    "html": "<blockquote>\n</blockquote>\n",
+    "markdown": ">\n",
+    "example": 202,
+    "start_line": 3449
+  },
+  {
+    "end_line": 3464,
+    "section": "Block quotes",
+    "html": "<blockquote>\n</blockquote>\n",
+    "markdown": ">\n>  \n> \n",
+    "example": 203,
+    "start_line": 3457
+  },
+  {
+    "end_line": 3477,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<p>foo</p>\n</blockquote>\n",
+    "markdown": ">\n> foo\n>  \n",
+    "example": 204,
+    "start_line": 3469
+  },
+  {
+    "end_line": 3493,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<p>foo</p>\n</blockquote>\n<blockquote>\n<p>bar</p>\n</blockquote>\n",
+    "markdown": "> foo\n\n> bar\n",
+    "example": 205,
+    "start_line": 3482
+  },
+  {
+    "end_line": 3512,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<p>foo\nbar</p>\n</blockquote>\n",
+    "markdown": "> foo\n> bar\n",
+    "example": 206,
+    "start_line": 3504
+  },
+  {
+    "end_line": 3526,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<p>foo</p>\n<p>bar</p>\n</blockquote>\n",
+    "markdown": "> foo\n>\n> bar\n",
+    "example": 207,
+    "start_line": 3517
+  },
+  {
+    "end_line": 3539,
+    "section": "Block quotes",
+    "html": "<p>foo</p>\n<blockquote>\n<p>bar</p>\n</blockquote>\n",
+    "markdown": "foo\n> bar\n",
+    "example": 208,
+    "start_line": 3531
+  },
+  {
+    "end_line": 3557,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<p>aaa</p>\n</blockquote>\n<hr />\n<blockquote>\n<p>bbb</p>\n</blockquote>\n",
+    "markdown": "> aaa\n***\n> bbb\n",
+    "example": 209,
+    "start_line": 3545
+  },
+  {
+    "end_line": 3571,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<p>bar\nbaz</p>\n</blockquote>\n",
+    "markdown": "> bar\nbaz\n",
+    "example": 210,
+    "start_line": 3563
+  },
+  {
+    "end_line": 3583,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<p>bar</p>\n</blockquote>\n<p>baz</p>\n",
+    "markdown": "> bar\n\nbaz\n",
+    "example": 211,
+    "start_line": 3574
+  },
+  {
+    "end_line": 3595,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<p>bar</p>\n</blockquote>\n<p>baz</p>\n",
+    "markdown": "> bar\n>\nbaz\n",
+    "example": 212,
+    "start_line": 3586
+  },
+  {
+    "end_line": 3614,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<blockquote>\n<blockquote>\n<p>foo\nbar</p>\n</blockquote>\n</blockquote>\n</blockquote>\n",
+    "markdown": "> > > foo\nbar\n",
+    "example": 213,
+    "start_line": 3602
+  },
+  {
+    "end_line": 3631,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<blockquote>\n<blockquote>\n<p>foo\nbar\nbaz</p>\n</blockquote>\n</blockquote>\n</blockquote>\n",
+    "markdown": ">>> foo\n> bar\n>>baz\n",
+    "example": 214,
+    "start_line": 3617
+  },
+  {
+    "end_line": 3651,
+    "section": "Block quotes",
+    "html": "<blockquote>\n<pre><code>code\n</code></pre>\n</blockquote>\n<blockquote>\n<p>not code</p>\n</blockquote>\n",
+    "markdown": ">     code\n\n>    not code\n",
+    "example": 215,
+    "start_line": 3639
+  },
+  {
+    "end_line": 3709,
+    "section": "List items",
+    "html": "<p>A paragraph\nwith two lines.</p>\n<pre><code>indented code\n</code></pre>\n<blockquote>\n<p>A block quote.</p>\n</blockquote>\n",
+    "markdown": "A paragraph\nwith two lines.\n\n    indented code\n\n> A block quote.\n",
+    "example": 216,
+    "start_line": 3694
+  },
+  {
+    "end_line": 3735,
+    "section": "List items",
+    "html": "<ol>\n<li>\n<p>A paragraph\nwith two lines.</p>\n<pre><code>indented code\n</code></pre>\n<blockquote>\n<p>A block quote.</p>\n</blockquote>\n</li>\n</ol>\n",
+    "markdown": "1.  A paragraph\n    with two lines.\n\n        indented code\n\n    > A block quote.\n",
+    "example": 217,
+    "start_line": 3716
+  },
+  {
+    "end_line": 3758,
+    "section": "List items",
+    "html": "<ul>\n<li>one</li>\n</ul>\n<p>two</p>\n",
+    "markdown": "- one\n\n two\n",
+    "example": 218,
+    "start_line": 3749
+  },
+  {
+    "end_line": 3772,
+    "section": "List items",
+    "html": "<ul>\n<li>\n<p>one</p>\n<p>two</p>\n</li>\n</ul>\n",
+    "markdown": "- one\n\n  two\n",
+    "example": 219,
+    "start_line": 3761
+  },
+  {
+    "end_line": 3785,
+    "section": "List items",
+    "html": "<ul>\n<li>one</li>\n</ul>\n<pre><code> two\n</code></pre>\n",
+    "markdown": " -    one\n\n     two\n",
+    "example": 220,
+    "start_line": 3775
+  },
+  {
+    "end_line": 3799,
+    "section": "List items",
+    "html": "<ul>\n<li>\n<p>one</p>\n<p>two</p>\n</li>\n</ul>\n",
+    "markdown": " -    one\n\n      two\n",
+    "example": 221,
+    "start_line": 3788
+  },
+  {
+    "end_line": 3825,
+    "section": "List items",
+    "html": "<blockquote>\n<blockquote>\n<ol>\n<li>\n<p>one</p>\n<p>two</p>\n</li>\n</ol>\n</blockquote>\n</blockquote>\n",
+    "markdown": "   > > 1.  one\n>>\n>>     two\n",
+    "example": 222,
+    "start_line": 3810
+  },
+  {
+    "end_line": 3850,
+    "section": "List items",
+    "html": "<blockquote>\n<blockquote>\n<ul>\n<li>one</li>\n</ul>\n<p>two</p>\n</blockquote>\n</blockquote>\n",
+    "markdown": ">>- one\n>>\n  >  > two\n",
+    "example": 223,
+    "start_line": 3837
+  },
+  {
+    "end_line": 3863,
+    "section": "List items",
+    "html": "<p>-one</p>\n<p>2.two</p>\n",
+    "markdown": "-one\n\n2.two\n",
+    "example": 224,
+    "start_line": 3856
+  },
+  {
+    "end_line": 3881,
+    "section": "List items",
+    "html": "<ul>\n<li>\n<p>foo</p>\n<p>bar</p>\n</li>\n</ul>\n",
+    "markdown": "- foo\n\n\n  bar\n",
+    "example": 225,
+    "start_line": 3869
+  },
+  {
+    "end_line": 3908,
+    "section": "List items",
+    "html": "<ol>\n<li>\n<p>foo</p>\n<pre><code>bar\n</code></pre>\n<p>baz</p>\n<blockquote>\n<p>bam</p>\n</blockquote>\n</li>\n</ol>\n",
+    "markdown": "1.  foo\n\n    ```\n    bar\n    ```\n\n    baz\n\n    > bam\n",
+    "example": 226,
+    "start_line": 3886
+  },
+  {
+    "end_line": 3932,
+    "section": "List items",
+    "html": "<ul>\n<li>\n<p>Foo</p>\n<pre><code>bar\n\n\nbaz\n</code></pre>\n</li>\n</ul>\n",
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+    "html": "<p>__(__foo)</p>\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>(<strong>foo</strong>)</em></p>\n",
+    "markdown": "_(__foo__)_\n",
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+    "html": "<p>__foo__bar</p>\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo__bar__baz</strong></p>\n",
+    "markdown": "__foo__bar__baz__\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>(bar)</strong>.</p>\n",
+    "markdown": "__(bar)__.\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo <a href=\"/url\">bar</a></em></p>\n",
+    "markdown": "*foo [bar](/url)*\n",
+    "example": 384,
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo\nbar</em></p>\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo <strong>bar</strong> baz</em></p>\n",
+    "markdown": "_foo __bar__ baz_\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo <em>bar</em> baz</em></p>\n",
+    "markdown": "_foo _bar_ baz_\n",
+    "example": 387,
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em><em>foo</em> bar</em></p>\n",
+    "markdown": "__foo_ bar_\n",
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+    "start_line": 6600
+  },
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo <em>bar</em></em></p>\n",
+    "markdown": "*foo *bar**\n",
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+    "start_line": 6607
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo <strong>bar</strong> baz</em></p>\n",
+    "markdown": "*foo **bar** baz*\n",
+    "example": 390,
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+  },
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo<strong>bar</strong>baz</em></p>\n",
+    "markdown": "*foo**bar**baz*\n",
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+  },
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em><strong>foo</strong> bar</em></p>\n",
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+    "html": "<p><em>foo <strong>bar</strong></em></p>\n",
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+    "html": "<p><em>foo<strong>bar</strong></em></p>\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo <strong>bar <em>baz</em> bim</strong> bop</em></p>\n",
+    "markdown": "*foo **bar *baz* bim** bop*\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo <a href=\"/url\"><em>bar</em></a></em></p>\n",
+    "markdown": "*foo [*bar*](/url)*\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo <a href=\"/url\">bar</a></strong></p>\n",
+    "markdown": "**foo [bar](/url)**\n",
+    "example": 399,
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo\nbar</strong></p>\n",
+    "markdown": "**foo\nbar**\n",
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+  },
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo <em>bar</em> baz</strong></p>\n",
+    "markdown": "__foo _bar_ baz__\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo <strong>bar</strong> baz</strong></p>\n",
+    "markdown": "__foo __bar__ baz__\n",
+    "example": 402,
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+  },
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong><strong>foo</strong> bar</strong></p>\n",
+    "markdown": "____foo__ bar__\n",
+    "example": 403,
+    "start_line": 6737
+  },
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo <strong>bar</strong></strong></p>\n",
+    "markdown": "**foo **bar****\n",
+    "example": 404,
+    "start_line": 6744
+  },
+  {
+    "end_line": 6755,
+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo <em>bar</em> baz</strong></p>\n",
+    "markdown": "**foo *bar* baz**\n",
+    "example": 405,
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+    "end_line": 6762,
+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo<em>bar</em>baz</strong></p>\n",
+    "markdown": "**foo*bar*baz**\n",
+    "example": 406,
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong><em>foo</em> bar</strong></p>\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo <em>bar</em></strong></p>\n",
+    "markdown": "**foo *bar***\n",
+    "example": 408,
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo <em>bar <strong>baz</strong>\nbim</em> bop</strong></p>\n",
+    "markdown": "**foo *bar **baz**\nbim* bop**\n",
+    "example": 409,
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+  {
+    "end_line": 6794,
+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo <a href=\"/url\"><em>bar</em></a></strong></p>\n",
+    "markdown": "**foo [*bar*](/url)**\n",
+    "example": 410,
+    "start_line": 6790
+  },
+  {
+    "end_line": 6803,
+    "section": "Emphasis and strong emphasis",
+    "html": "<p>__ is not an empty emphasis</p>\n",
+    "markdown": "__ is not an empty emphasis\n",
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+    "start_line": 6799
+  },
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+    "end_line": 6810,
+    "section": "Emphasis and strong emphasis",
+    "html": "<p>____ is not an empty strong emphasis</p>\n",
+    "markdown": "____ is not an empty strong emphasis\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>foo ***</p>\n",
+    "markdown": "foo ***\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>foo <em>*</em></p>\n",
+    "markdown": "foo *\\**\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>foo <em>_</em></p>\n",
+    "markdown": "foo *_*\n",
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+    "end_line": 6841,
+    "section": "Emphasis and strong emphasis",
+    "html": "<p>foo *****</p>\n",
+    "markdown": "foo *****\n",
+    "example": 416,
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>foo <strong>*</strong></p>\n",
+    "markdown": "foo **\\***\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>foo <strong>_</strong></p>\n",
+    "markdown": "foo **_**\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>*<em>foo</em></p>\n",
+    "markdown": "**foo*\n",
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+    "html": "<p><em>foo</em>*</p>\n",
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+    "markdown": "***foo**\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>***<em>foo</em></p>\n",
+    "markdown": "****foo*\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo</strong>*</p>\n",
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+    "start_line": 6890
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+    "section": "Emphasis and strong emphasis",
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+    "markdown": "*foo****\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>foo ___</p>\n",
+    "markdown": "foo ___\n",
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+    "start_line": 6907
+  },
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>foo <em>_</em></p>\n",
+    "markdown": "foo _\\__\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>foo <em>*</em></p>\n",
+    "markdown": "foo _*_\n",
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+    "start_line": 6921
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>foo _____</p>\n",
+    "markdown": "foo _____\n",
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+    "start_line": 6928
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+    "end_line": 6939,
+    "section": "Emphasis and strong emphasis",
+    "html": "<p>foo <strong>_</strong></p>\n",
+    "markdown": "foo __\\___\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>foo <strong>*</strong></p>\n",
+    "markdown": "foo __*__\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>_<em>foo</em></p>\n",
+    "markdown": "__foo_\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo</em>_</p>\n",
+    "markdown": "_foo__\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>_<strong>foo</strong></p>\n",
+    "markdown": "___foo__\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>___<em>foo</em></p>\n",
+    "markdown": "____foo_\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo</strong>_</p>\n",
+    "markdown": "__foo___\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo</em>___</p>\n",
+    "markdown": "_foo____\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong>foo</strong></p>\n",
+    "markdown": "**foo**\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em><em>foo</em></em></p>\n",
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+    "html": "<p><strong>foo</strong></p>\n",
+    "markdown": "__foo__\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em><em>foo</em></em></p>\n",
+    "markdown": "_*foo*_\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong><strong>foo</strong></strong></p>\n",
+    "markdown": "****foo****\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong><strong>foo</strong></strong></p>\n",
+    "markdown": "____foo____\n",
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+    "end_line": 7051,
+    "section": "Emphasis and strong emphasis",
+    "html": "<p><strong><strong><strong>foo</strong></strong></strong></p>\n",
+    "markdown": "******foo******\n",
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+    "start_line": 7047
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em><strong>foo</strong></em></p>\n",
+    "markdown": "***foo***\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em><strong><strong>foo</strong></strong></em></p>\n",
+    "markdown": "_____foo_____\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo _bar</em> baz_</p>\n",
+    "markdown": "*foo _bar* baz_\n",
+    "example": 446,
+    "start_line": 7072
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+    "end_line": 7083,
+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>foo <strong>bar *baz bim</strong> bam</em></p>\n",
+    "markdown": "*foo __bar *baz bim__ bam*\n",
+    "example": 447,
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>**foo <strong>bar baz</strong></p>\n",
+    "markdown": "**foo **bar baz**\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>*foo <em>bar baz</em></p>\n",
+    "markdown": "*foo *bar baz*\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>*<a href=\"/url\">bar*</a></p>\n",
+    "markdown": "*[bar*](/url)\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>_foo <a href=\"/url\">bar_</a></p>\n",
+    "markdown": "_foo [bar_](/url)\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>*<img src=\"foo\" title=\"*\"/></p>\n",
+    "markdown": "*<img src=\"foo\" title=\"*\"/>\n",
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+    "end_line": 7129,
+    "section": "Emphasis and strong emphasis",
+    "html": "<p>**<a href=\"**\"></p>\n",
+    "markdown": "**<a href=\"**\">\n",
+    "example": 453,
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>__<a href=\"__\"></p>\n",
+    "markdown": "__<a href=\"__\">\n",
+    "example": 454,
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>a <code>*</code></em></p>\n",
+    "markdown": "*a `*`*\n",
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p><em>a <code>_</code></em></p>\n",
+    "markdown": "_a `_`_\n",
+    "example": 456,
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+    "section": "Emphasis and strong emphasis",
+    "html": "<p>**a<a href=\"http://foo.bar/?q=**\">http://foo.bar/?q=**</a></p>\n",
+    "markdown": "**a<http://foo.bar/?q=**>\n",
+    "example": 457,
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+    "section": "Emphasis and strong emphasis",
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+    "section": "Links",
+    "html": "<p><a href=\"%22title%22\">link</a></p>\n",
+    "markdown": "[link](\"title\")\n",
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+    "section": "Links",
+    "html": "<p><a href=\"/url\" title=\"title\">link</a>\n<a href=\"/url\" title=\"title\">link</a>\n<a href=\"/url\" title=\"title\">link</a></p>\n",
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+    "section": "Links",
+    "html": "<p>[link](/url &quot;title &quot;and&quot; title&quot;)</p>\n",
+    "markdown": "[link](/url \"title \"and\" title\")\n",
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+    "section": "Links",
+    "html": "<p><a href=\"/url\" title=\"title &quot;and&quot; title\">link</a></p>\n",
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+    "section": "Links",
+    "html": "<p><a href=\"/uri\" title=\"title\">link</a></p>\n",
+    "markdown": "[link](   /uri\n  \"title\"  )\n",
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+    "section": "Links",
+    "html": "<p>[link] (/uri)</p>\n",
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+    "section": "Links",
+    "html": "<p><a href=\"/uri\">link [foo [bar]]</a></p>\n",
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+    "html": "<p>[link] bar](/uri)</p>\n",
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+    "html": "<p>[link <a href=\"/uri\">bar</a></p>\n",
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+    "section": "Links",
+    "html": "<p><a href=\"/uri\">link [bar</a></p>\n",
+    "markdown": "[link \\[bar](/uri)\n",
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+    "html": "<p><a href=\"/uri\"><img src=\"moon.jpg\" alt=\"moon\" /></a></p>\n",
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+    "html": "<p>[foo <a href=\"/uri\">bar</a>](/uri)</p>\n",
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+    "section": "Links",
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+    "section": "Links",
+    "html": "<p><img src=\"uri3\" alt=\"[foo](uri2)\" /></p>\n",
+    "markdown": "![[[foo](uri1)](uri2)](uri3)\n",
+    "example": 491,
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+    "html": "<p>*<a href=\"/uri\">foo*</a></p>\n",
+    "markdown": "*[foo*](/uri)\n",
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+    "section": "Links",
+    "html": "<p><a href=\"baz*\">foo *bar</a></p>\n",
+    "markdown": "[foo *bar](baz*)\n",
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+    "section": "Links",
+    "html": "<p><em>foo [bar</em> baz]</p>\n",
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+    "html": "<p>[foo <bar attr=\"](baz)\"></p>\n",
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+    "html": "<p>*<a href=\"/uri\">foo*</a></p>\n",
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+    "end_line": 8100,
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+    "end_line": 8113,
+    "section": "Links",
+    "html": "<p><a href=\"/url2\">foo</a></p>\n",
+    "markdown": "[foo][bar]\n\n[foo]: /url1\n[bar]: /url2\n",
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+    "end_line": 8121,
+    "section": "Links",
+    "html": "<p><a href=\"/url1\">foo</a></p>\n",
+    "markdown": "[foo][]\n\n[foo]: /url1\n",
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+    "end_line": 8131,
+    "section": "Links",
+    "html": "<p><a href=\"\">foo</a></p>\n",
+    "markdown": "[foo]()\n\n[foo]: /url1\n",
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+    "end_line": 8139,
+    "section": "Links",
+    "html": "<p><a href=\"/url1\">foo</a>(not a link)</p>\n",
+    "markdown": "[foo](not a link)\n\n[foo]: /url1\n",
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+    "end_line": 8150,
+    "section": "Links",
+    "html": "<p>[foo]<a href=\"/url\">bar</a></p>\n",
+    "markdown": "[foo][bar][baz]\n\n[baz]: /url\n",
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+    "end_line": 8163,
+    "section": "Links",
+    "html": "<p><a href=\"/url2\">foo</a><a href=\"/url1\">baz</a></p>\n",
+    "markdown": "[foo][bar][baz]\n\n[baz]: /url1\n[bar]: /url2\n",
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+    "end_line": 8176,
+    "section": "Links",
+    "html": "<p>[foo]<a href=\"/url1\">bar</a></p>\n",
+    "markdown": "[foo][bar][baz]\n\n[baz]: /url1\n[foo]: /url2\n",
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+    "end_line": 8196,
+    "section": "Images",
+    "html": "<p><img src=\"/url\" alt=\"foo\" title=\"title\" /></p>\n",
+    "markdown": "![foo](/url \"title\")\n",
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+  },
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+    "end_line": 8205,
+    "section": "Images",
+    "html": "<p><img src=\"train.jpg\" alt=\"foo bar\" title=\"train &amp; tracks\" /></p>\n",
+    "markdown": "![foo *bar*]\n\n[foo *bar*]: train.jpg \"train & tracks\"\n",
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+  },
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+    "end_line": 8212,
+    "section": "Images",
+    "html": "<p><img src=\"/url2\" alt=\"foo bar\" /></p>\n",
+    "markdown": "![foo ![bar](/url)](/url2)\n",
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+    "end_line": 8219,
+    "section": "Images",
+    "html": "<p><img src=\"/url2\" alt=\"foo bar\" /></p>\n",
+    "markdown": "![foo [bar](/url)](/url2)\n",
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+    "start_line": 8215
+  },
+  {
+    "end_line": 8235,
+    "section": "Images",
+    "html": "<p><img src=\"train.jpg\" alt=\"foo bar\" title=\"train &amp; tracks\" /></p>\n",
+    "markdown": "![foo *bar*][]\n\n[foo *bar*]: train.jpg \"train & tracks\"\n",
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+  },
+  {
+    "end_line": 8244,
+    "section": "Images",
+    "html": "<p><img src=\"train.jpg\" alt=\"foo bar\" title=\"train &amp; tracks\" /></p>\n",
+    "markdown": "![foo *bar*][foobar]\n\n[FOOBAR]: train.jpg \"train & tracks\"\n",
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+  },
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+    "end_line": 8251,
+    "section": "Images",
+    "html": "<p><img src=\"train.jpg\" alt=\"foo\" /></p>\n",
+    "markdown": "![foo](train.jpg)\n",
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+    "start_line": 8247
+  },
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+    "end_line": 8258,
+    "section": "Images",
+    "html": "<p>My <img src=\"/path/to/train.jpg\" alt=\"foo bar\" title=\"title\" /></p>\n",
+    "markdown": "My ![foo bar](/path/to/train.jpg  \"title\"   )\n",
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+    "end_line": 8265,
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+    "html": "<p><img src=\"url\" alt=\"foo\" /></p>\n",
+    "markdown": "![foo](<url>)\n",
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+  },
+  {
+    "end_line": 8272,
+    "section": "Images",
+    "html": "<p><img src=\"/url\" alt=\"\" /></p>\n",
+    "markdown": "![](/url)\n",
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+  },
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+    "end_line": 8283,
+    "section": "Images",
+    "html": "<p><img src=\"/url\" alt=\"foo\" /></p>\n",
+    "markdown": "![foo][bar]\n\n[bar]: /url\n",
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+    "end_line": 8292,
+    "section": "Images",
+    "html": "<p><img src=\"/url\" alt=\"foo\" /></p>\n",
+    "markdown": "![foo][bar]\n\n[BAR]: /url\n",
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+    "end_line": 8303,
+    "section": "Images",
+    "html": "<p><img src=\"/url\" alt=\"foo\" title=\"title\" /></p>\n",
+    "markdown": "![foo][]\n\n[foo]: /url \"title\"\n",
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+  },
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+    "end_line": 8312,
+    "section": "Images",
+    "html": "<p><img src=\"/url\" alt=\"foo bar\" title=\"title\" /></p>\n",
+    "markdown": "![*foo* bar][]\n\n[*foo* bar]: /url \"title\"\n",
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+  },
+  {
+    "end_line": 8323,
+    "section": "Images",
+    "html": "<p><img src=\"/url\" alt=\"Foo\" title=\"title\" /></p>\n",
+    "markdown": "![Foo][]\n\n[foo]: /url \"title\"\n",
+    "example": 557,
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+  },
+  {
+    "end_line": 8337,
+    "section": "Images",
+    "html": "<p><img src=\"/url\" alt=\"foo\" title=\"title\" />\n[]</p>\n",
+    "markdown": "![foo] \n[]\n\n[foo]: /url \"title\"\n",
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+  },
+  {
+    "end_line": 8348,
+    "section": "Images",
+    "html": "<p><img src=\"/url\" alt=\"foo\" title=\"title\" /></p>\n",
+    "markdown": "![foo]\n\n[foo]: /url \"title\"\n",
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+  },
+  {
+    "end_line": 8357,
+    "section": "Images",
+    "html": "<p><img src=\"/url\" alt=\"foo bar\" title=\"title\" /></p>\n",
+    "markdown": "![*foo* bar]\n\n[*foo* bar]: /url \"title\"\n",
+    "example": 560,
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+  },
+  {
+    "end_line": 8369,
+    "section": "Images",
+    "html": "<p>![[foo]]</p>\n<p>[[foo]]: /url &quot;title&quot;</p>\n",
+    "markdown": "![[foo]]\n\n[[foo]]: /url \"title\"\n",
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+  },
+  {
+    "end_line": 8380,
+    "section": "Images",
+    "html": "<p><img src=\"/url\" alt=\"Foo\" title=\"title\" /></p>\n",
+    "markdown": "![Foo]\n\n[foo]: /url \"title\"\n",
+    "example": 562,
+    "start_line": 8374
+  },
+  {
+    "end_line": 8392,
+    "section": "Images",
+    "html": "<p>![foo]</p>\n",
+    "markdown": "!\\[foo]\n\n[foo]: /url \"title\"\n",
+    "example": 563,
+    "start_line": 8386
+  },
+  {
+    "end_line": 8404,
+    "section": "Images",
+    "html": "<p>!<a href=\"/url\" title=\"title\">foo</a></p>\n",
+    "markdown": "\\![foo]\n\n[foo]: /url \"title\"\n",
+    "example": 564,
+    "start_line": 8398
+  },
+  {
+    "end_line": 8435,
+    "section": "Autolinks",
+    "html": "<p><a href=\"http://foo.bar.baz\">http://foo.bar.baz</a></p>\n",
+    "markdown": "<http://foo.bar.baz>\n",
+    "example": 565,
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+  },
+  {
+    "end_line": 8442,
+    "section": "Autolinks",
+    "html": "<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>\n",
+    "markdown": "<http://foo.bar.baz/test?q=hello&id=22&boolean>\n",
+    "example": 566,
+    "start_line": 8438
+  },
+  {
+    "end_line": 8449,
+    "section": "Autolinks",
+    "html": "<p><a href=\"irc://foo.bar:2233/baz\">irc://foo.bar:2233/baz</a></p>\n",
+    "markdown": "<irc://foo.bar:2233/baz>\n",
+    "example": 567,
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+  },
+  {
+    "end_line": 8458,
+    "section": "Autolinks",
+    "html": "<p><a href=\"MAILTO:FOO@BAR.BAZ\">MAILTO:FOO@BAR.BAZ</a></p>\n",
+    "markdown": "<MAILTO:FOO@BAR.BAZ>\n",
+    "example": 568,
+    "start_line": 8454
+  },
+  {
+    "end_line": 8470,
+    "section": "Autolinks",
+    "html": "<p><a href=\"a+b+c:d\">a+b+c:d</a></p>\n",
+    "markdown": "<a+b+c:d>\n",
+    "example": 569,
+    "start_line": 8466
+  },
+  {
+    "end_line": 8477,
+    "section": "Autolinks",
+    "html": "<p><a href=\"made-up-scheme://foo,bar\">made-up-scheme://foo,bar</a></p>\n",
+    "markdown": "<made-up-scheme://foo,bar>\n",
+    "example": 570,
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+  },
+  {
+    "end_line": 8484,
+    "section": "Autolinks",
+    "html": "<p><a href=\"http://../\">http://../</a></p>\n",
+    "markdown": "<http://../>\n",
+    "example": 571,
+    "start_line": 8480
+  },
+  {
+    "end_line": 8491,
+    "section": "Autolinks",
+    "html": "<p><a href=\"localhost:5001/foo\">localhost:5001/foo</a></p>\n",
+    "markdown": "<localhost:5001/foo>\n",
+    "example": 572,
+    "start_line": 8487
+  },
+  {
+    "end_line": 8500,
+    "section": "Autolinks",
+    "html": "<p>&lt;http://foo.bar/baz bim&gt;</p>\n",
+    "markdown": "<http://foo.bar/baz bim>\n",
+    "example": 573,
+    "start_line": 8496
+  },
+  {
+    "end_line": 8509,
+    "section": "Autolinks",
+    "html": "<p><a href=\"http://example.com/%5C%5B%5C\">http://example.com/\\[\\</a></p>\n",
+    "markdown": "<http://example.com/\\[\\>\n",
+    "example": 574,
+    "start_line": 8505
+  },
+  {
+    "end_line": 8531,
+    "section": "Autolinks",
+    "html": "<p><a href=\"mailto:foo@bar.example.com\">foo@bar.example.com</a></p>\n",
+    "markdown": "<foo@bar.example.com>\n",
+    "example": 575,
+    "start_line": 8527
+  },
+  {
+    "end_line": 8538,
+    "section": "Autolinks",
+    "html": "<p><a href=\"mailto:foo+special@Bar.baz-bar0.com\">foo+special@Bar.baz-bar0.com</a></p>\n",
+    "markdown": "<foo+special@Bar.baz-bar0.com>\n",
+    "example": 576,
+    "start_line": 8534
+  },
+  {
+    "end_line": 8547,
+    "section": "Autolinks",
+    "html": "<p>&lt;foo+@bar.example.com&gt;</p>\n",
+    "markdown": "<foo\\+@bar.example.com>\n",
+    "example": 577,
+    "start_line": 8543
+  },
+  {
+    "end_line": 8556,
+    "section": "Autolinks",
+    "html": "<p>&lt;&gt;</p>\n",
+    "markdown": "<>\n",
+    "example": 578,
+    "start_line": 8552
+  },
+  {
+    "end_line": 8563,
+    "section": "Autolinks",
+    "html": "<p>&lt; http://foo.bar &gt;</p>\n",
+    "markdown": "< http://foo.bar >\n",
+    "example": 579,
+    "start_line": 8559
+  },
+  {
+    "end_line": 8570,
+    "section": "Autolinks",
+    "html": "<p>&lt;m:abc&gt;</p>\n",
+    "markdown": "<m:abc>\n",
+    "example": 580,
+    "start_line": 8566
+  },
+  {
+    "end_line": 8577,
+    "section": "Autolinks",
+    "html": "<p>&lt;foo.bar.baz&gt;</p>\n",
+    "markdown": "<foo.bar.baz>\n",
+    "example": 581,
+    "start_line": 8573
+  },
+  {
+    "end_line": 8584,
+    "section": "Autolinks",
+    "html": "<p>http://example.com</p>\n",
+    "markdown": "http://example.com\n",
+    "example": 582,
+    "start_line": 8580
+  },
+  {
+    "end_line": 8591,
+    "section": "Autolinks",
+    "html": "<p>foo@bar.example.com</p>\n",
+    "markdown": "foo@bar.example.com\n",
+    "example": 583,
+    "start_line": 8587
+  },
+  {
+    "end_line": 8673,
+    "section": "Raw HTML",
+    "html": "<p><a><bab><c2c></p>\n",
+    "markdown": "<a><bab><c2c>\n",
+    "example": 584,
+    "start_line": 8669
+  },
+  {
+    "end_line": 8682,
+    "section": "Raw HTML",
+    "html": "<p><a/><b2/></p>\n",
+    "markdown": "<a/><b2/>\n",
+    "example": 585,
+    "start_line": 8678
+  },
+  {
+    "end_line": 8693,
+    "section": "Raw HTML",
+    "html": "<p><a  /><b2\ndata=\"foo\" ></p>\n",
+    "markdown": "<a  /><b2\ndata=\"foo\" >\n",
+    "example": 586,
+    "start_line": 8687
+  },
+  {
+    "end_line": 8704,
+    "section": "Raw HTML",
+    "html": "<p><a foo=\"bar\" bam = 'baz <em>\"</em>'\n_boolean zoop:33=zoop:33 /></p>\n",
+    "markdown": "<a foo=\"bar\" bam = 'baz <em>\"</em>'\n_boolean zoop:33=zoop:33 />\n",
+    "example": 587,
+    "start_line": 8698
+  },
+  {
+    "end_line": 8713,
+    "section": "Raw HTML",
+    "html": "<p>Foo <responsive-image src=\"foo.jpg\" /></p>\n",
+    "markdown": "Foo <responsive-image src=\"foo.jpg\" />\n",
+    "example": 588,
+    "start_line": 8709
+  },
+  {
+    "end_line": 8722,
+    "section": "Raw HTML",
+    "html": "<p>&lt;33&gt; &lt;__&gt;</p>\n",
+    "markdown": "<33> <__>\n",
+    "example": 589,
+    "start_line": 8718
+  },
+  {
+    "end_line": 8731,
+    "section": "Raw HTML",
+    "html": "<p>&lt;a h*#ref=&quot;hi&quot;&gt;</p>\n",
+    "markdown": "<a h*#ref=\"hi\">\n",
+    "example": 590,
+    "start_line": 8727
+  },
+  {
+    "end_line": 8740,
+    "section": "Raw HTML",
+    "html": "<p>&lt;a href=&quot;hi'&gt; &lt;a href=hi'&gt;</p>\n",
+    "markdown": "<a href=\"hi'> <a href=hi'>\n",
+    "example": 591,
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+  },
+  {
+    "end_line": 8751,
+    "section": "Raw HTML",
+    "html": "<p>&lt; a&gt;&lt;\nfoo&gt;&lt;bar/ &gt;</p>\n",
+    "markdown": "< a><\nfoo><bar/ >\n",
+    "example": 592,
+    "start_line": 8745
+  },
+  {
+    "end_line": 8760,
+    "section": "Raw HTML",
+    "html": "<p>&lt;a href='bar'title=title&gt;</p>\n",
+    "markdown": "<a href='bar'title=title>\n",
+    "example": 593,
+    "start_line": 8756
+  },
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+    "end_line": 8769,
+    "section": "Raw HTML",
+    "html": "<p></a></foo ></p>\n",
+    "markdown": "</a></foo >\n",
+    "example": 594,
+    "start_line": 8765
+  },
+  {
+    "end_line": 8778,
+    "section": "Raw HTML",
+    "html": "<p>&lt;/a href=&quot;foo&quot;&gt;</p>\n",
+    "markdown": "</a href=\"foo\">\n",
+    "example": 595,
+    "start_line": 8774
+  },
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+    "end_line": 8789,
+    "section": "Raw HTML",
+    "html": "<p>foo <!-- this is a\ncomment - with hyphen --></p>\n",
+    "markdown": "foo <!-- this is a\ncomment - with hyphen -->\n",
+    "example": 596,
+    "start_line": 8783
+  },
+  {
+    "end_line": 8796,
+    "section": "Raw HTML",
+    "html": "<p>foo &lt;!-- not a comment -- two hyphens --&gt;</p>\n",
+    "markdown": "foo <!-- not a comment -- two hyphens -->\n",
+    "example": 597,
+    "start_line": 8792
+  },
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+    "end_line": 8808,
+    "section": "Raw HTML",
+    "html": "<p>foo &lt;!--&gt; foo --&gt;</p>\n<p>foo &lt;!-- foo---&gt;</p>\n",
+    "markdown": "foo <!--> foo -->\n\nfoo <!-- foo--->\n",
+    "example": 598,
+    "start_line": 8801
+  },
+  {
+    "end_line": 8817,
+    "section": "Raw HTML",
+    "html": "<p>foo <?php echo $a; ?></p>\n",
+    "markdown": "foo <?php echo $a; ?>\n",
+    "example": 599,
+    "start_line": 8813
+  },
+  {
+    "end_line": 8826,
+    "section": "Raw HTML",
+    "html": "<p>foo <!ELEMENT br EMPTY></p>\n",
+    "markdown": "foo <!ELEMENT br EMPTY>\n",
+    "example": 600,
+    "start_line": 8822
+  },
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+    "end_line": 8835,
+    "section": "Raw HTML",
+    "html": "<p>foo <![CDATA[>&<]]></p>\n",
+    "markdown": "foo <![CDATA[>&<]]>\n",
+    "example": 601,
+    "start_line": 8831
+  },
+  {
+    "end_line": 8845,
+    "section": "Raw HTML",
+    "html": "<p>foo <a href=\"&ouml;\"></p>\n",
+    "markdown": "foo <a href=\"&ouml;\">\n",
+    "example": 602,
+    "start_line": 8841
+  },
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+    "end_line": 8854,
+    "section": "Raw HTML",
+    "html": "<p>foo <a href=\"\\*\"></p>\n",
+    "markdown": "foo <a href=\"\\*\">\n",
+    "example": 603,
+    "start_line": 8850
+  },
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+    "end_line": 8861,
+    "section": "Raw HTML",
+    "html": "<p>&lt;a href=&quot;&quot;&quot;&gt;</p>\n",
+    "markdown": "<a href=\"\\\"\">\n",
+    "example": 604,
+    "start_line": 8857
+  },
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+    "end_line": 8877,
+    "section": "Hard line breaks",
+    "html": "<p>foo<br />\nbaz</p>\n",
+    "markdown": "foo  \nbaz\n",
+    "example": 605,
+    "start_line": 8871
+  },
+  {
+    "end_line": 8889,
+    "section": "Hard line breaks",
+    "html": "<p>foo<br />\nbaz</p>\n",
+    "markdown": "foo\\\nbaz\n",
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+    "start_line": 8883
+  },
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+    "end_line": 8900,
+    "section": "Hard line breaks",
+    "html": "<p>foo<br />\nbaz</p>\n",
+    "markdown": "foo       \nbaz\n",
+    "example": 607,
+    "start_line": 8894
+  },
+  {
+    "end_line": 8911,
+    "section": "Hard line breaks",
+    "html": "<p>foo<br />\nbar</p>\n",
+    "markdown": "foo  \n     bar\n",
+    "example": 608,
+    "start_line": 8905
+  },
+  {
+    "end_line": 8920,
+    "section": "Hard line breaks",
+    "html": "<p>foo<br />\nbar</p>\n",
+    "markdown": "foo\\\n     bar\n",
+    "example": 609,
+    "start_line": 8914
+  },
+  {
+    "end_line": 8932,
+    "section": "Hard line breaks",
+    "html": "<p><em>foo<br />\nbar</em></p>\n",
+    "markdown": "*foo  \nbar*\n",
+    "example": 610,
+    "start_line": 8926
+  },
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+    "end_line": 8941,
+    "section": "Hard line breaks",
+    "html": "<p><em>foo<br />\nbar</em></p>\n",
+    "markdown": "*foo\\\nbar*\n",
+    "example": 611,
+    "start_line": 8935
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+  {
+    "end_line": 8951,
+    "section": "Hard line breaks",
+    "html": "<p><code>code span</code></p>\n",
+    "markdown": "`code  \nspan`\n",
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+    "end_line": 8959,
+    "section": "Hard line breaks",
+    "html": "<p><code>code\\ span</code></p>\n",
+    "markdown": "`code\\\nspan`\n",
+    "example": 613,
+    "start_line": 8954
+  },
+  {
+    "end_line": 8970,
+    "section": "Hard line breaks",
+    "html": "<p><a href=\"foo  \nbar\"></p>\n",
+    "markdown": "<a href=\"foo  \nbar\">\n",
+    "example": 614,
+    "start_line": 8964
+  },
+  {
+    "end_line": 8979,
+    "section": "Hard line breaks",
+    "html": "<p><a href=\"foo\\\nbar\"></p>\n",
+    "markdown": "<a href=\"foo\\\nbar\">\n",
+    "example": 615,
+    "start_line": 8973
+  },
+  {
+    "end_line": 8990,
+    "section": "Hard line breaks",
+    "html": "<p>foo\\</p>\n",
+    "markdown": "foo\\\n",
+    "example": 616,
+    "start_line": 8986
+  },
+  {
+    "end_line": 8997,
+    "section": "Hard line breaks",
+    "html": "<p>foo</p>\n",
+    "markdown": "foo  \n",
+    "example": 617,
+    "start_line": 8993
+  },
+  {
+    "end_line": 9004,
+    "section": "Hard line breaks",
+    "html": "<h3>foo\\</h3>\n",
+    "markdown": "### foo\\\n",
+    "example": 618,
+    "start_line": 9000
+  },
+  {
+    "end_line": 9011,
+    "section": "Hard line breaks",
+    "html": "<h3>foo</h3>\n",
+    "markdown": "### foo  \n",
+    "example": 619,
+    "start_line": 9007
+  },
+  {
+    "end_line": 9028,
+    "section": "Soft line breaks",
+    "html": "<p>foo\nbaz</p>\n",
+    "markdown": "foo\nbaz\n",
+    "example": 620,
+    "start_line": 9022
+  },
+  {
+    "end_line": 9040,
+    "section": "Soft line breaks",
+    "html": "<p>foo\nbaz</p>\n",
+    "markdown": "foo \n baz\n",
+    "example": 621,
+    "start_line": 9034
+  },
+  {
+    "end_line": 9058,
+    "section": "Textual content",
+    "html": "<p>hello $.;'there</p>\n",
+    "markdown": "hello $.;'there\n",
+    "example": 622,
+    "start_line": 9054
+  },
+  {
+    "end_line": 9065,
+    "section": "Textual content",
+    "html": "<p>Foo χρῆν</p>\n",
+    "markdown": "Foo χρῆν\n",
+    "example": 623,
+    "start_line": 9061
+  },
+  {
+    "end_line": 9074,
+    "section": "Textual content",
+    "html": "<p>Multiple     spaces</p>\n",
+    "markdown": "Multiple     spaces\n",
+    "example": 624,
+    "start_line": 9070
+  }
+]
diff --git a/packages/netlify-cms-widget-markdown/src/serializers/__tests__/commonmark.spec.js b/packages/netlify-cms-widget-markdown/src/serializers/__tests__/commonmark.spec.js
new file mode 100644
index 00000000..56a4f1d3
--- /dev/null
+++ b/packages/netlify-cms-widget-markdown/src/serializers/__tests__/commonmark.spec.js
@@ -0,0 +1,30 @@
+import { flow, trim } from 'lodash';
+import commonmarkSpec from './__fixtures__/commonmark.json';
+import { markdownToSlate, slateToMarkdown, markdownToHtml } from '../index.js';
+
+/**
+ * Map the commonmark spec data into an array of arrays for use in Jest's
+ * `test.each`.
+ */
+const spec = commonmarkSpec.map(({ markdown, html }) => [markdown, html]);
+
+/**
+ * Each test receives input markdown and output html as expected for Commonmark
+ * compliance. To test all of our handling in one go, we serialize the markdown
+ * into our Slate AST, then back to raw markdown, and finally to HTML.
+ */
+const process = flow([markdownToSlate, slateToMarkdown, markdownToHtml]);
+
+/**
+ * Passing this test suite requires 100% Commonmark compliance. There are 624
+ * tests, of which we're passing about 300 as of introduction of this suite. To
+ * work on improving Commonmark support, remove `.skip` from this `describe`
+ * and run the test suite locally.
+ */
+describe.skip('Commonmark support', () => {
+  test.each(spec)('%s', (markdown, html) => {
+    // We're trimming the html from the spec as they all have trailing newlines
+    // and we never output trailing newlines. This may be a compliance issue.
+    expect(process(markdown)).toEqual(trim(html));
+  });
+});