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https://github.com/tw93/Mole.git
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🎨 Refactor new feature uninstall
This commit is contained in:
Tw93
248
lib/better_menu.sh
Executable file
248
lib/better_menu.sh
Executable file
@@ -0,0 +1,248 @@
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#!/bin/bash
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# Better menu system with proper terminal handling
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# Uses tried-and-true approach for better compatibility
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# Terminal state management
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save_terminal() {
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stty -g 2>/dev/null || true
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}
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restore_terminal() {
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stty "$(save_terminal)" 2>/dev/null || true
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printf '\033[?25h' >&2 # Show cursor
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printf '\033[0m' >&2 # Reset colors
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}
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# Read a single key (handles arrow keys properly)
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read_key() {
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local key
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read -rsn1 key
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case "$key" in
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$'\033') # ESC sequence
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read -rsn2 key 2>/dev/null || key=""
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case "$key" in
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'[A') echo "UP" ;;
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'[B') echo "DOWN" ;;
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*) echo "ESC" ;;
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esac
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;;
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' ') echo "SPACE" ;;
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'') echo "ENTER" ;;
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'q'|'Q') echo "QUIT" ;;
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*) echo "OTHER" ;;
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esac
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}
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# Multi-select menu with proper pagination
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multi_select_menu() {
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local title="$1"
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shift
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local -a items=("$@")
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if [[ ${#items[@]} -eq 0 ]]; then
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echo "Error: No items provided" >&2
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return 1
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fi
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local -a selected=()
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local current=0
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local page_size=10
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local total=${#items[@]}
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# Initialize selection array
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for ((i = 0; i < total; i++)); do
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selected[i]=false
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done
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# Save terminal state
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local saved_state=""
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saved_state=$(save_terminal)
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trap 'test -n "$saved_state" && stty "$saved_state" 2>/dev/null; restore_terminal' EXIT INT TERM
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while true; do
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# Calculate pagination
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local start_page=$((current / page_size))
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local start_idx=$((start_page * page_size))
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local end_idx=$((start_idx + page_size - 1))
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if [[ $end_idx -ge $total ]]; then
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end_idx=$((total - 1))
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fi
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# Clear screen and show header
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printf '\033[2J\033[H' >&2
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echo "┌─── $title ───┐" >&2
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echo "│ Found $total items (Page $((start_page + 1)) of $(((total + page_size - 1) / page_size))) │" >&2
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echo "└─────────────────────────────────────────────┘" >&2
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echo "" >&2
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# Show items for current page
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for ((i = start_idx; i <= end_idx; i++)); do
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local marker=" "
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local checkbox="☐"
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if [[ $i -eq $current ]]; then
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marker="▶ "
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fi
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if [[ ${selected[i]} == "true" ]]; then
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checkbox="☑"
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fi
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printf "%s%s %s\n" "$marker" "$checkbox" "${items[i]}" >&2
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done
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echo "" >&2
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echo "Controls: ↑/↓=Navigate Space=Select/Deselect Enter=Confirm Q=Quit" >&2
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# Show selection summary
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local count=0
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for ((i = 0; i < total; i++)); do
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if [[ ${selected[i]} == "true" ]]; then
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((count++))
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fi
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done
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echo "Selected: $count items" >&2
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echo "" >&2
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# Read key
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local key
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key=$(read_key)
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case "$key" in
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"UP")
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((current--))
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if [[ $current -lt 0 ]]; then
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current=$((total - 1))
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fi
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;;
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"DOWN")
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((current++))
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if [[ $current -ge $total ]]; then
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current=0
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fi
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;;
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"SPACE")
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if [[ ${selected[current]} == "true" ]]; then
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selected[current]=false
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else
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selected[current]=true
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fi
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;;
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"ENTER")
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# Build result string
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local result=""
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for ((i = 0; i < total; i++)); do
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if [[ ${selected[i]} == "true" ]]; then
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result="$result $i"
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fi
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done
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# Clean up and return
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restore_terminal
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echo "${result# }" # Remove leading space
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return 0
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;;
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"QUIT"|"ESC")
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restore_terminal
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return 1
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;;
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esac
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done
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}
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# Simple single-select menu
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single_select_menu() {
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local title="$1"
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shift
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local -a items=("$@")
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if [[ ${#items[@]} -eq 0 ]]; then
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echo "Error: No items provided" >&2
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return 1
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fi
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local current=0
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local total=${#items[@]}
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# Save terminal state
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local saved_state=""
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saved_state=$(save_terminal)
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trap 'test -n "$saved_state" && stty "$saved_state" 2>/dev/null; restore_terminal' EXIT INT TERM
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while true; do
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# Clear screen and show header
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printf '\033[2J\033[H' >&2
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echo "┌─── $title ───┐" >&2
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echo "│ Choose one of $total items │" >&2
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echo "└────────────────────────────┘" >&2
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echo "" >&2
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# Show all items
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for ((i = 0; i < total; i++)); do
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local marker=" "
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if [[ $i -eq $current ]]; then
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marker="▶ "
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fi
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printf "%s%s\n" "$marker" "${items[i]}" >&2
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done
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echo "" >&2
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echo "Controls: ↑/↓=Navigate Enter=Select Q=Quit" >&2
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echo "" >&2
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# Read key
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local key
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key=$(read_key)
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case "$key" in
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"UP")
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((current--))
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if [[ $current -lt 0 ]]; then
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current=$((total - 1))
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fi
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;;
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"DOWN")
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((current++))
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if [[ $current -ge $total ]]; then
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current=0
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fi
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;;
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"ENTER")
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restore_terminal
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echo "$current"
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return 0
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;;
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"QUIT"|"ESC")
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restore_terminal
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return 1
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;;
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esac
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done
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}
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# Demo function for testing
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demo() {
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echo "=== Multi-select Demo ===" >&2
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local result
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result=$(multi_select_menu "Test Multi-Select" "Option 1" "Option 2" "Option 3" "Option 4" "Option 5")
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if [[ $? -eq 0 ]]; then
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echo "You selected indices: $result" >&2
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else
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echo "Selection cancelled" >&2
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fi
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echo "" >&2
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echo "=== Single-select Demo ===" >&2
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result=$(single_select_menu "Test Single-Select" "Choice A" "Choice B" "Choice C")
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if [[ $? -eq 0 ]]; then
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echo "You selected index: $result" >&2
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else
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echo "Selection cancelled" >&2
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fi
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}
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# Run demo if script is executed directly
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if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
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demo
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fi
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