Add Insert and Fn keys.

TODO: keys are apparently treated differently when shift is pressed.
Find a better representation.

src/event.rs

@@ -22,7 +22,9 @@ pub enum EventResult {
 
 #[derive(PartialEq,Eq,Clone,Copy,Hash)]
 pub enum Key {
+    /// Both Enter and numpad Enter
     Enter,
+    /// Tabulation key
     Tab,
     ArrowLeft,
     ArrowRight,
@@ -33,7 +35,25 @@ pub enum Key {
     Backspace,
     Home,
     End,
+    /// Delete key
     Del,
+    /// Insert key
+    Ins,
+    F1,
+    F2,
+    F3,
+    F4,
+    F5,
+    F6,
+    F7,
+    F8,
+    F9,
+    F10,
+    F11,
+    F12,
+    F13,
+    F14,
+    F15,
     Unknown(i32),
 }
 
@@ -41,9 +61,11 @@ impl Key {
     pub fn from_ncurses(ch: i32) -> Self {
         match ch {
             9 => Key::Tab,
-            10 => Key::Enter,
+            // Treat Return and the numpad Enter the same
+            10 | ncurses::KEY_ENTER => Key::Enter,
             127 => Key::Backspace,
             330 => Key::Del,
+            331 => Key::Ins,
             ncurses::KEY_LEFT => Key::ArrowLeft,
             ncurses::KEY_RIGHT => Key::ArrowRight,
             ncurses::KEY_UP => Key::ArrowUp,
@@ -52,6 +74,21 @@ impl Key {
             ncurses::KEY_NPAGE => Key::PageDown,
             ncurses::KEY_HOME => Key::Home,
             ncurses::KEY_END => Key::End,
+            ncurses::KEY_F1 => Key::F1,
+            ncurses::KEY_F2 => Key::F2,
+            ncurses::KEY_F3 => Key::F3,
+            ncurses::KEY_F4 => Key::F4,
+            ncurses::KEY_F5 => Key::F5,
+            ncurses::KEY_F6 => Key::F6,
+            ncurses::KEY_F7 => Key::F7,
+            ncurses::KEY_F8 => Key::F8,
+            ncurses::KEY_F9 => Key::F9,
+            ncurses::KEY_F10 => Key::F10,
+            ncurses::KEY_F11 => Key::F11,
+            ncurses::KEY_F12 => Key::F12,
+            ncurses::KEY_F13 => Key::F13,
+            ncurses::KEY_F14 => Key::F14,
+            ncurses::KEY_F15 => Key::F15,
             _ => Key::Unknown(ch),
         }
     }
@@ -74,6 +111,22 @@ impl fmt::Display for Key {
                 Key::Del => "Del",
                 Key::Enter => "Enter",
                 Key::Tab => "Tab",
+                Key::Ins => "Ins",
+                Key::F1 => "F1",
+                Key::F2 => "F2",
+                Key::F3 => "F3",
+                Key::F4 => "F4",
+                Key::F5 => "F5",
+                Key::F6 => "F6",
+                Key::F7 => "F7",
+                Key::F8 => "F8",
+                Key::F9 => "F9",
+                Key::F10 => "F10",
+                Key::F11 => "F11",
+                Key::F12 => "F12",
+                Key::F13 => "F13",
+                Key::F14 => "F14",
+                Key::F15 => "F15",
                 _ => "",
             }),
         }