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#data
<b>1<i>2<p>3</b>4
#errors
(1,3): expected-doctype-but-got-start-tag
(1,16): adoption-agency-1.3
(1,17): expected-closing-tag-but-got-eof
#document
| <html>
| <head>
| <body>
| <b>
| "1"
| <i>
| "2"
| <i>
| <p>
| <b>
| "3"
| "4"
#data
<a><div><style></style><address><a>
#errors
(1,3): expected-doctype-but-got-start-tag
(1,35): unexpected-start-tag-implies-end-tag
(1,35): adoption-agency-1.3
(1,35): adoption-agency-1.3
(1,35): expected-closing-tag-but-got-eof
#document
| <html>
| <head>
| <body>
| <a>
| <div>
| <a>
| <style>
| <address>
| <a>
| <a>
#data
<b><i><a><s><tt><div></b>first</b></div></tt></s></a>second</i>
#errors
3: Start tag seen without seeing a doctype first. Expected "<!DOCTYPE html>".
25: End tag "b" violates nesting rules.
34: Stray end tag "b".
63: Stray end tag "i".
#document
| <html>
| <head>
| <body>
| <b>
| <i>
| <a>
| <s>
| <tt>
| <a>
| <s>
| <tt>
| <div>
| <b>
| "first"
| "second"
#data
<code foo="bar"><code><code><code><code></code></code></code></code>text</code>
#errors
16: Start tag seen without seeing a doctype first. Expected "<!DOCTYPE html>".
#document
| <html>
| <head>
| <body>
| <code>
| foo="bar"
| <code>
| <code>
| <code>
| <code>
| "text"
#data
<code foo="bar"><code><code><code><div><code></div></code></code></code></code>text</code>
#errors
16: Start tag seen without seeing a doctype first. Expected "<!DOCTYPE html>".
51: End tag "div" seen, but there were open elements.
45: Unclosed element "code".
58: No "code" element in scope but a "code" end tag seen.
#document
| <html>
| <head>
| <body>
| <code>
| foo="bar"
| <code>
| <code>
| <code>
| <div>
| <code>
| "text"