fixed ask_yn again

spells/cantrips/ask_yn

@@ -1,8 +1,5 @@
 #!/bin/sh
 
-# Define ask_yn, which asks a yes or no question and defaults to the specified choice.
-# Outputs 1 for yes and 0 for no
-
 ask_yn() {
     default=${2:-"y"}
     default=$(printf "%s" "$default" | tr '[:upper:]' '[:lower:]')
@@ -15,14 +12,14 @@ ask_yn() {
     esac
     
     while true; do
-        trap 'stty sane; exit' INT
+        trap 'exit' INT
         printf "%s (%s): " "$1" "$prompt"
-        stty raw -echo
-        answer=$(head -c 1) || exit
-        stty -echo
-        printf "\n"
+        read -r answer || exit
+        if [ -z "$answer" ]; then
+            answer="$default"
+            break
+        fi
         case "$answer" in
-            "" ) answer="$default"; break;;
             y|Y) answer="y"; break;;
             n|N) answer="n"; break;;
         esac