Commit 9f1ae97

@@ -42,20 +42,40 @@ void enable_raw_mode() {
   if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw) == -1) die("tcsetattr");
 }
 
+char editor_read_key() {
+  int nread;
+  char c;
+  while ((nread = read(STDIN_FILENO, &c, 1)) != 1) {
+    if (nread == -1 && errno != EAGAIN) die("read");
+  }
+  return c;
+}
+
+/*** input ***/
+
+void editor_process_keypress() {
+  char c = editor_read_key();
+
+  switch(c) {
+    case CTRL_KEY('q'):
+      exit(0);
+      break;
+    default:
+      if (iscntrl(c))
+        printf("%d\r\n", c);
+      else
+        printf("%d ('%c')\r\n", c, c);
+      break;
+  }
+}
+
 /*** init ***/
 
 int main() {
   enable_raw_mode();
 
   while (1) {
-    char c = '\0';
-    if (read(STDIN_FILENO, &c, 1) == -1 && errno != EAGAIN) die("read");
-    if (iscntrl(c)) {
-      printf("%d\r\n", c);
-    } else {
-      printf("%d ('%c')\r\n", c, c);
-    }
-    if (c == CTRL_KEY('q')) break;
+    editor_process_keypress();
   }
 
   return 0;