From be9987235887cb73637b91ab6921158ecaef9d95 Mon Sep 17 00:00:00 2001
From: Kevin Lamonte <kevin.lamonte@gmail.com>
Date: Fri, 25 Aug 2017 16:42:46 -0400
Subject: [PATCH] Diambiguate ^H from backspace

---
 src/jexer/backend/SwingTerminal.java | 13 ++++++++++---
 src/jexer/tterminal/ECMA48.java      |  2 +-
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/jexer/backend/SwingTerminal.java b/src/jexer/backend/SwingTerminal.java
index b20d448a..a9806386 100644
--- a/src/jexer/backend/SwingTerminal.java
+++ b/src/jexer/backend/SwingTerminal.java
@@ -1489,8 +1489,7 @@ public final class SwingTerminal extends LogicalScreen
                     alt, ctrl, shift);
                 break;
             case KeyEvent.VK_BACK_SPACE:
-                // Special case: return it as kbBackspace (Ctrl-H)
-                keypress = new TKeypress(false, 0, 'H', false, true, false);
+                keypress = kbBackspace;
                 break;
             default:
                 // Unsupported, ignore
@@ -1501,7 +1500,15 @@ public final class SwingTerminal extends LogicalScreen
         if (keypress == null) {
             switch (ch) {
             case 0x08:
-                keypress = kbBackspace;
+                // Disambiguate ^H from Backspace.
+                if (KeyEvent.getKeyText(key.getKeyCode()).equals("H")) {
+                    // This is ^H.
+                    keypress = kbBackspace;
+                } else {
+                    // We are emulating Xterm here, where the backspace key
+                    // on the keyboard returns ^?.
+                    keypress = kbBackspaceDel;
+                }
                 break;
             case 0x0A:
                 keypress = kbEnter;
diff --git a/src/jexer/tterminal/ECMA48.java b/src/jexer/tterminal/ECMA48.java
index 3702b8bc..caa295ad 100644
--- a/src/jexer/tterminal/ECMA48.java
+++ b/src/jexer/tterminal/ECMA48.java
@@ -1385,7 +1385,7 @@ public class ECMA48 implements Runnable {
             return sb.toString();
         }
 
-        if (keypress.equals(kbBackspace)) {
+        if (keypress.equals(kbBackspaceDel)) {
             switch (type) {
             case VT100:
                 return "\010";
-- 
2.27.0