Simple interactive menus for the terminal (Now ships with Julia!)

Ships with Julia now!

This package has been merged into the Julia standard library. As such, you probably just want to using REPL.TerminalMenus and skip the Installation instructions below.

TerminalMenus

TerminalMenus.jl enables small, low-profile interactive menus in the terminal.

Installation

TerminalMenus requires Julia 0.6. Use Pkg to install:

Pkg.add("TerminalMenus")

Examples

using TerminalMenus

options = ["apple", "orange", "grape", "strawberry",
            "blueberry", "peach", "lemon", "lime"]

RadioMenu

The RadioMenu allows the user to select one option from the list. The request function displays the interactive menu and returns the index of the selected choice. If a user presses 'q' or ctrl-c, request will return a -1.

# `pagesize` is the number of items to be displayed at a time.
#  The UI will scroll if the number of options is greater
#   than the `pagesize`
menu = RadioMenu(options, pagesize=4)

# `request` displays the menu and returns the index after the
#   user has selected a choice
choice = request("Choose your favorite fruit:", menu)

if choice != -1
    println("Your favorite fruit is ", options[choice], "!")
else
    println("Menu canceled.")
end

Output:

Choose your favorite fruit:
^  grape
   strawberry
 > blueberry
v  peach
Your favorite fruit is blueberry!

MultiSelectMenu

The MultiSelectMenu allows users to select many choices from a list.

# here we use the default `pagesize` 10
menu = MultiSelectMenu(options)

# `request` returns a `Set` of selected indices
# if the menu us canceled (ctrl-c or q), return an empty set
choices = request("Select the fruits you like:", menu)

if length(choices) > 0
    println("You like the following fruits:")
    for i in choices
        println("  - ", options[i])
    end
else
    println("Menu canceled.")
end

Output:

Select the fruits you like:
[press: d=done, a=all, n=none]
   [ ] apple
 > [X] orange
   [X] grape
   [ ] strawberry
   [ ] blueberry
   [X] peach
   [ ] lemon
   [ ] lime
You like the following fruits:
  - orange
  - grape
  - peach

Customization / Configuation

All interface customization is done through the keyword only TerminalMenus.config() function.

Arguments

• charset::Symbol=:na: ui characters to use (:ascii or :unicode); overridden by other arguments
• cursor::Char='>'|'→': character to use for cursor
• up_arrow::Char='^'|'↑': character to use for up arrow
• down_arrow::Char='v'|'↓': character to use for down arrow
• checked::String="[X]"|"✓": string to use for checked
• unchecked::String="[ ]"|"⬚"): string to use for unchecked
• scroll::Symbol=:na: If :wrap then wrap the cursor around top and bottom, if :nowrap do not wrap cursor
• supress_output::Bool=false: For testing. If true, menu will not be printed to console.
• ctrl_c_interrupt::Bool=true: If false, return empty on ^C, if true throw InterruptException() on ^C

Examples

julia> menu = MultiSelectMenu(options, pagesize=5);

julia> request(menu) # ASCII is used by default
[press: d=done, a=all, n=none]
   [ ] apple
   [X] orange
   [ ] grape
 > [X] strawberry
v  [ ] blueberry
Set([4, 2])

julia> TerminalMenus.config(charset=:unicode)

julia> request(menu)
[press: d=done, a=all, n=none]
   ⬚ apple
   ✓ orange
   ⬚ grape
 → ✓ strawberry
↓  ⬚ blueberry
Set([4, 2])

julia> TerminalMenus.config(checked="YEP!", unchecked="NOPE", cursor='⧐')

julia> request(menu)
[press: d=done, a=all, n=none]
   NOPE apple
   YEP! orange
   NOPE grape
 ⧐ YEP! strawberry
↓  NOPE blueberry
Set([4, 2])

TODO

• Nested menus
• More customization?

The interactive menu has been tested on Ubuntu 16.04 and windows 7, 8, & 10. If there are any issues on your platform, please submit an issue or a pull request.