From 5e21cccadc33e092c32580d330e9aa76684ac480 Mon Sep 17 00:00:00 2001
From: Benjamyn Love <benjamyn.love@gmail.com>
Date: Wed, 7 Feb 2024 13:24:33 +1100
Subject: [PATCH] chapter4

---
 kilo.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/kilo.c b/kilo.c
index 2268593..7d17361 100644
--- a/kilo.c
+++ b/kilo.c
@@ -21,6 +21,9 @@ enum editorKey
   ARROW_RIGHT,
   ARROW_UP,
   ARROW_DOWN,
+  DEL_KEY,
+  HOME_KEY,
+  END_KEY,
   PAGE_UP,
   PAGE_DOWN
 };
@@ -101,10 +104,15 @@ int editorReadKey()
         {
           switch (seq[1])
           {
+          case '1': return HOME_KEY;
+          case '3': return DEL_KEY;
+          case '4': return END_KEY;
           case '5':
             return PAGE_UP;
           case '6':
             return PAGE_DOWN;
+          case '7': return HOME_KEY;
+          case '8': return END_KEY;
           }
         }
       }
@@ -120,8 +128,15 @@ int editorReadKey()
           return ARROW_RIGHT;
         case 'D':
           return ARROW_LEFT;
+        case 'H': return HOME_KEY;
+        case 'F': return END_KEY;
         }
       }
+    } else if (seq[0] == 'O') {
+      switch (seq[1]) {
+        case 'H': return HOME_KEY;
+        case 'F': return END_KEY;
+      }
     }
     return '\x1b';
   }
@@ -308,6 +323,12 @@ void editorProcessKeypress()
 
     exit(0);
     break;
+  case HOME_KEY:
+    E.cx = 0;
+    break;
+  case END_KEY:
+    E.cx = E.screencols - 1;
+    break;
   case PAGE_UP:
   case PAGE_DOWN:
   {