ask_yn works perfectly on Arch

spells/cantrips/ask_yn

@@ -18,16 +18,16 @@ stty raw -echo
 printf "%s" "$prompt" >&2
 while true
 do
-    answer=$(head -c 1)
-    if [ "$answer" = $'\n' ] || [ "$answer" = $'\r' ]; then
-        answer=""
-        break
-    elif printf "%s" "$answer" | grep -iq "^y\|^n"; then
+    answer=$(dd bs=1 count=1 2>/dev/null)
+    if printf "%s" "$answer" | grep -iq "^y\|^n"; then
         break
-    elif [ "$answer" = $'\003' ]; then
+    elif [ "$(printf "%d" "'$answer'")" -eq 3 ]; then
         stty "$old_stty_cfg"
         printf '\n'
         exit 2
+    elif [ "$(printf "%d" "'$answer'")" -eq 13 ]; then
+        answer=""
+        break
     fi
 done
 stty "$old_stty_cfg" >&2 # Restore original stty configuration