diff --git a/.idea/misc.xml b/.idea/misc.xml
index 37d23de..3583a37 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -35,6 +35,7 @@
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diff --git a/.idea/rust.iml b/.idea/rust.iml
index 0da18db..1263a66 100644
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@@ -141,6 +141,10 @@
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diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 5d9f874..450794f 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,8 +2,9 @@
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@@ -66,8 +52,6 @@
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diff --git a/pattern_matching/Cargo.toml b/pattern_matching/Cargo.toml
new file mode 100644
index 0000000..5af7510
--- /dev/null
+++ b/pattern_matching/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "pattern_matching"
+version = "0.1.0"
+authors = ["Timothy Warren "]
+edition = "2018"
+
+[dependencies]
diff --git a/pattern_matching/src/main.rs b/pattern_matching/src/main.rs
new file mode 100644
index 0000000..493595f
--- /dev/null
+++ b/pattern_matching/src/main.rs
@@ -0,0 +1,196 @@
+struct Point {
+ x: i32,
+ y: i32,
+}
+
+struct XYZPoint {
+ x: i32,
+ y: i32,
+ z: i32,
+}
+
+enum Color {
+ Rgb(i32, i32, i32),
+ Hsv(i32, i32, i32)
+}
+
+enum Message {
+ Quit,
+ Move { x: i32, y: i32 },
+ Write(String),
+ ChangeColor(Color),
+}
+
+fn match_variable_shadowing () {
+ let x = Some(5);
+ let y = 10;
+
+ match x {
+ Some(50) => println!("Got 50"),
+
+ // shadows the outer y, gets the value of x
+ Some(y) => println!("Matched, y = {:?}", y),
+
+ _ => println!("Default case, x = {:?}", x),
+ }
+
+ println!("at the end: x = {:?}, y = {:?}", x, y);
+}
+
+fn match_multiple () {
+ let x = 1;
+
+ match x {
+ 1 | 2 => println!("one or two"),
+ 3 => println!("three"),
+ _ => println!("anything"),
+ }
+}
+
+fn match_range () {
+ let x = 5;
+
+ match x {
+ 1 ... 5 => println!("one through five"),
+ _ => println!("something else"),
+ }
+}
+
+fn match_destructure_with_literals () {
+ let p = Point { x: 0, y: 7 };
+
+ match p {
+ Point { x, y: 0 } => println!("On the x axis at {}", x),
+ Point { x: 0, y } => println!("On the y axis at {}", y),
+ Point { x, y } => println!("On neither axis: ({}, {})", x, y),
+ }
+}
+
+fn match_destructure_enum () {
+ let msg = Message::ChangeColor(Color::Hsv(0, 160, 255));
+
+ match msg {
+ Message::ChangeColor(Color::Rgb(r, g, b)) => {
+ println!(
+ "Change the color to red {}, green {}, and blue {}",
+ r,
+ g,
+ b
+ )
+ },
+ Message::ChangeColor(Color::Hsv(h, s, v)) => {
+ println!(
+ "Change the color to hue {}, saturation {}, and value {}",
+ h,
+ s,
+ v
+ )
+ }
+ _ => ()
+ }
+}
+
+fn destructure_references() {
+ let points = vec![
+ Point { x: 0, y: 0 },
+ Point { x: 1, y: 5 },
+ Point { x: 10, y: -3 },
+ ];
+
+ let sum_of_squares: i32 = points
+ .iter()
+ .map(|&Point { x, y }| x * x + y * y)
+ .sum();
+}
+
+fn match_ignore_value () {
+ let mut setting_value = Some(5);
+ let new_setting_value = Some(10);
+
+ match (setting_value, new_setting_value) {
+ (Some(_), Some(_)) => {
+ println!("Can't overwrite an existing customized value");
+ }
+ _ => {
+ setting_value = new_setting_value;
+ }
+ }
+
+ println!("setting is {:?}", setting_value);
+}
+
+fn match_ignore_value_parts () {
+ let origin = XYZPoint { x: 0, y: 0, z: 0 };
+
+ match origin {
+ XYZPoint { x, .. } => println!("x is {}", x),
+ }
+}
+
+fn match_ignore_value_parts_tuple () {
+ let numbers = (2, 4, 8, 16, 32);
+
+ match numbers {
+ (first, .., last) => {
+ println!("Some numbers: {}, {}", first, last);
+ },
+ }
+}
+
+fn match_guard() {
+ let num = Some(4);
+
+ match num {
+ Some(x) if x < 5 => println!("less than five: {}", x), // Has a match guard
+ Some(x) => println!("{}", x),
+ None => (),
+ }
+}
+
+fn match_variable_shadowing_fixed_with_match_guard() {
+ let x = Some(5);
+ let y = 10;
+
+ match x {
+ Some(50) => println!("Got 50"),
+ Some(n) if n == y => println!("Matched, n = {:?}", n),
+ _ => println!("Default case, x = {:?}", x),
+ }
+
+ println!("at the end: x = {:?}, y = {:?}", x, y);
+}
+
+fn at_match_var_bind() {
+ enum Message {
+ Hello { id: i32 },
+ }
+
+ let msg = Message::Hello { id: 5 };
+
+ match msg {
+ Message::Hello { id: id_variable @ 3...7 } => { // The @ binds the value and matches
+ println!("Found an id in range: {}", id_variable)
+ },
+ Message::Hello { id: 10...12 } => {
+ println!("Found an id in another range")
+ },
+ Message::Hello { id } => {
+ println!("Found some other id: {}", id)
+ },
+ }
+}
+
+fn main() {
+ match_variable_shadowing();
+ match_multiple();
+ match_range();
+ match_destructure_with_literals();
+ match_destructure_enum();
+ destructure_references();
+ match_ignore_value();
+ match_ignore_value_parts();
+ match_ignore_value_parts_tuple();
+ match_guard();
+ match_variable_shadowing_fixed_with_match_guard();
+ at_match_var_bind();
+}