1 files changed, 27 insertions, 0 deletions

diff --git a/quantum/quantum.c b/quantum/quantum.c
index 3ac0ed871..8db801f19 100644
--- a/quantum/quantum.c
+++ b/quantum/quantum.c
@@ -391,6 +391,29 @@ __attribute__((weak)) const uint8_t ascii_to_altgr_lut[16] PROGMEM = {
     KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
 };
 
+/* Bit-Packed look-up table to convert an ASCII character to whether
+ * [Space] needs to be sent after the keycode
+ */
+__attribute__((weak)) const uint8_t ascii_to_dead_lut[16] PROGMEM = {
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+    KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+};
+
 /* Look-up table to convert an ASCII character to a keycode.
  */
 __attribute__((weak)) const uint8_t ascii_to_keycode_lut[128] PROGMEM = {
@@ -531,6 +554,7 @@ void send_char(char ascii_code) {
     uint8_t keycode    = pgm_read_byte(&ascii_to_keycode_lut[(uint8_t)ascii_code]);
     bool    is_shifted = PGM_LOADBIT(ascii_to_shift_lut, (uint8_t)ascii_code);
     bool    is_altgred = PGM_LOADBIT(ascii_to_altgr_lut, (uint8_t)ascii_code);
+    bool    is_dead    = PGM_LOADBIT(ascii_to_dead_lut, (uint8_t)ascii_code);
 
     if (is_shifted) {
         register_code(KC_LSFT);
@@ -545,6 +569,9 @@ void send_char(char ascii_code) {
     if (is_shifted) {
         unregister_code(KC_LSFT);
     }
+    if (is_dead) {
+        tap_code(KC_SPACE);
+    }
 }
 
 void set_single_persistent_default_layer(uint8_t default_layer) {