Update Examples

Examples.md

@@ -280,9 +280,9 @@ struct Rectangle
 
 
 
-fn main()
+fn main
     // Create struct with field init shorthand
-    let name = s"Peter"  // note s-string
+    let name = s"Peter"  //! Note s-string
         age = 27
         peter = Person name, age
 
@@ -383,7 +383,7 @@ enum WebEvent
         x, y: i64
 
 fn inspect(event: WebEvent)
-    match event // Note variant auto-import
+    match event //! Note variant auto-import
         PageLoad => println! "page loaded"
         PageUnload => println! "page unloaded"
         // Destructure `c` from inside the `enum` variant.
@@ -397,7 +397,7 @@ fn inspect(event: WebEvent)
 
 
 
-fn main()
+fn main
     let pressed = WebEvent::KeyPress 'x'
         pasted  = WebEvent::Paste s"my text"
         click   = WebEvent::Click x: 20, y: 80
@@ -423,10 +423,91 @@ fn main()
 <td>
 
 ```
+use crate::List::*;
+
+enum List {
+    Cons(u32, Box<List>),
+    Nil,
+}
+
+impl List {
+    fn new() -> List {
+        Nil
+    }
+
+    fn prepend(self, elem: u32) -> List {
+        Cons(elem, Box::new(self))
+    }
+
+    fn len(&self) -> u32 {
+        match self {
+            Cons(_, tail) => 1 + tail.len(),
+            Nil => 0
+        }
+    }
+
+    fn stringify(&self) -> String {
+        match self {
+            Cons(head, tail) => {
+                format!("{}, {}", head, tail.stringify())
+            },
+            Nil => {
+                format!("Nil")
+            },
+        }
+    }
+}
+
+fn main() {
+    let mut list = List::new();
+
+    list = list.prepend(1);
+    list = list.prepend(2);
+    list = list.prepend(3);
+
+    println!("linked list has length: {}", list.len());
+    println!("{}", list.stringify());
+}
 ```
 </td><td>
 
 ```
+// use crate::List::*; //! Unneeded bc of match auto-import
+
+enum List
+    Cons(u32, Box<List>)
+    Nil
+
+impl List
+    fn new -> List  Nil
+
+    fn prepend(self, elem: u32) -> List
+        Cons elem, Box::new self
+
+    fn len(&self) -> u32
+        match self
+            Cons _, tail => 1 + tail.len()
+            Nil => 0
+
+    fn stringify(&self) -> String
+        match self
+            Cons head, tail =>
+                format! "{}, {}", head, tail.stringify()
+            Nil => 
+                format! "Nil"
+
+
+
+fn main
+    let mut list = List::new()
+
+    list = list.prepend(1)
+        .prepend(2)
+        .prepend(3)
+
+    println! "linked list has length: {}", list.len()
+    println! "{}", list.stringify()
+
 ```
 </td></tr></table>