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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Patterns and Matching</title>
+</head>
+<body>
+<h1 id="patterns-and-matching"><a class="header" href="#patterns-and-matching">Patterns and Matching</a></h1>
+<p>Patterns are a special syntax in Rust for matching against the structure of
+types, both complex and simple. Using patterns in conjunction with <code>match</code>
+expressions and other constructs gives you more control over a program’s
+control flow. A pattern consists of some combination of the following:</p>
+<ul>
+<li>Literals</li>
+<li>Destructured arrays, enums, structs, or tuples</li>
+<li>Variables</li>
+<li>Wildcards</li>
+<li>Placeholders</li>
+</ul>
+<p>Some example patterns include <code>x</code>, <code>(a, 3)</code>, and <code>Some(Color::Red)</code>. In the
+contexts in which patterns are valid, these components describe the shape of
+data. Our program then matches values against the patterns to determine whether
+it has the correct shape of data to continue running a particular piece of code.</p>
+<p>To use a pattern, we compare it to some value. If the pattern matches the
+value, we use the value parts in our code. Recall the <code>match</code> expressions in
+Chapter 6 that used patterns, such as the coin-sorting machine example. If the
+value fits the shape of the pattern, we can use the named pieces. If it
+doesn’t, the code associated with the pattern won’t run.</p>
+<p>This chapter is a reference on all things related to patterns. We’ll cover the
+valid places to use patterns, the difference between refutable and irrefutable
+patterns, and the different kinds of pattern syntax that you might see. By the
+end of the chapter, you’ll know how to use patterns to express many concepts in
+a clear way.</p>
+</body>
+</html>