menu script hopefully uses POSIX-compliant array workaround now

spells/cantrips/menu

@@ -19,14 +19,14 @@ description=$1
 shift
 
 # Parse args. Each arg is "name%command"
-declare -a items
-# declare -a descriptions # not displayed so presently disabled
-declare -a commands
+items=""
+commands=""
 while [ ${#} -gt 0 ]; do
-	IFS='%' read -r -a option <<< "$1"
-    items+=("${option[0]}")
-    #descriptions+=("$(option[1])") # not displayed so presently disabled
-    commands+=("${option[1]}")
+    IFS='%' read -r item command <<EOF
+$1
+EOF
+    items="${items}:${item}"
+    commands="${commands}:${command}"
     shift
 done
 
@@ -38,14 +38,15 @@ menu_x=$((0))
 menu_y=$(fathom-cursor -y)
 
 # Calculate the number of rows that the menu will occupy
-num_rows=${#items[@]}
+num_rows=$(echo "$items" | tr -cd ':' | wc -c)
 
 # Calculate the maximum length of the item names
 # Todo: abstract this out into a max-length function in another script. I gave up on trying to find an elegant way to pass a list of strings with spaces. Even separating them with newlines didn't work.
 max_name_length=0
 
 # Find the longest line
-for line in "${items[@]}"; do
+set -f IFS=':'; set -- $items; set +f
+for line; do
     line_length=${#line}
     if [ $line_length -gt $max_name_length ]; then
         max_name_length=$line_length
@@ -79,17 +80,21 @@ display_menu() {
   fi
   
   # Print the items and commands
-  for i in "${!items[@]}"; do
-  	# Truncate the command to the width of the screen # Todo: come up with a better solution that allows the user to see the full command.
-  	max_command_length=$(( $window_width - $max_name_length - 3 )) # -3 is for the > and the space between item and command
-  	truncated_command=$(echo "${commands[$i]}" | cut -c -$max_command_length)
-    if [ $i -eq $selected ]; then
-      printf "${CYAN}> %-${max_name_length}s${RESET} ${GREY}%s${RESET}\n" "${items[$i]}" "$truncated_command"
-    else
-    	# Print the menu item plus extra spaces to cover up its command, since it's not selected
-      printf "  %-${max_name_length}s %*s\n" "${items[$i]}" "${#truncated_command}"
-    fi
-  done
+  i=0
+	set -f IFS=':'; set -- $items; set +f
+	for item; do
+		set -f IFS=':'; set -- $commands; set +f
+		for j in $(seq 1 $selected); do shift; done
+		command=$1
+		max_command_length=$(( $window_width - $max_name_length - 3 )) # -3 is for the > and the space between item and command
+		truncated_command=$(echo "${command}" | cut -c -$max_command_length)
+		if [ $i -eq $selected ]; then
+		  printf "${CYAN}> %-${max_name_length}s${RESET} ${GREY}%s${RESET}\n" "${item}" "$truncated_command"
+		else
+		  printf "  %-${max_name_length}s %*s\n" "${item}" "${#truncated_command}"
+		fi
+		i=$((i + 1))
+	done
 }
 
 # Define the function to handle key presses