From d8077adb64daed993f19cfb3c9347a2100858fcb Mon Sep 17 00:00:00 2001
From: Fabian Greffrath <fabian@greffrath.com>
Date: Sun, 25 May 2025 10:48:30 +0200
Subject: [PATCH] support binding the non-US backslash key (#2271)

This is the key between Left Shift and Y on an ISO keyboard.
---
 src/doomkeys.h | 3 ++-
 src/m_input.c  | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/doomkeys.h b/src/doomkeys.h
index 751057d6..38339542 100644
--- a/src/doomkeys.h
+++ b/src/doomkeys.h
@@ -89,6 +89,7 @@ enum
     KEYP_MINUS,
     KEYP_MULTIPLY,
     KEYP_PERIOD,
+    KEYP_BACKSLASH,
     KEYP_EQUALS = KEY_EQUALS,
     KEYP_ENTER = KEY_ENTER,
 };
@@ -115,7 +116,7 @@ enum
     KEYP_MULTIPLY, KEYP_MINUS, KEYP_PLUS, KEYP_ENTER, KEYP_1,               \
     KEYP_2, KEYP_3, KEYP_4, KEYP_5, KEYP_6,                   /* 90-99 */   \
     KEYP_7, KEYP_8, KEYP_9, KEYP_0, KEYP_PERIOD,                            \
-    0, 0, 0, KEYP_EQUALS,                                     /* 100-103 */ \
+    KEYP_BACKSLASH, 0, 0, KEYP_EQUALS,                        /* 100-103 */ \
 }
 
 // Default names for keys, to use in English or as fallback.
diff --git a/src/m_input.c b/src/m_input.c
index 8a1ab1a9..a4bfef5a 100644
--- a/src/m_input.c
+++ b/src/m_input.c
@@ -295,6 +295,7 @@ static const struct
     {KEYP_MINUS,     "num-"      },
     {KEYP_MULTIPLY,  "num*"      },
     {KEYP_PERIOD,    "num."      },
+    {KEYP_BACKSLASH, "num\\"     },
 };
 
 #define JOYB_LEN 16