youchoose
A simple, easy to use command line menu for Rust.
Usage
There are two methods you need to be familiar with to get started: Menu::new which takes an Iterator as an argument, and Menu::show which initializes ncurses and displays the menu.
Here is a minimal example that displays the range 0..100 in a menu:
use youchoose;
fn main() {
let mut menu = youchoose::Menu::new(0..100);
let choice = menu.show();
// `choice` is a Vec<usize> containing the chosen indices
println!("Index of the chosen item: {:?}", choice);
}
Either ββ or jk can be used to scroll, and return is used to select. ESC or q can be used to quit.
Previews
The youchoose::Menu has a preview feature, which executes a command and shows the results on a separate pane.
use youchoose;
fn main(){
let mut menu = youchoose::Menu::new(0..100).preview(multiples);
let choice = menu.show();
println!("Chose {:?}", choice);
}
fn multiples(num: i32) -> String {
let mut buffer = String::new();
for i in 0..20 {
buffer.push_str(
&format!("{} times {} is equal to {}!\n", num, i, num * i)
);
}
buffer
}
Customization
Let's take a look at an example that showcases the available methods for customization.
use youchoose;
fn main() {
let mut menu = youchoose::Menu::new(0..100)
.preview(multiples) // Sets the preview function
.preview_pos(youchoose::ScreenSide::Bottom, 0.3) // Sets the position of the preview pane and its width across 0.0 and 1.0
.preview_label(" multiples ".to_string()) // Sets the text at the top of the preview pane
.multiselect() // Allows multiple items to be selected
.icon(":(") // Sets the default (not selected) icon for an item
.selected_icon(":)") // The icon for selected items
.add_multiselect_key('s' as i32) // Bind the 's' key to multiselect
.add_up_key('u' as i32) // Bind the 'u' key to up
.add_down_key('d' as i32) // Bind the 'd' key to down
.add_select_key('.' as i32); // Bind the '.' key to select
let choice = menu.show();
}
fn multiples(num: i32) -> String {
// --- Snip ---
format!("very custom: {}", num)
}
Contributions
All contributions, big or small, are welcome! If you would like to implement a new feature or fix a bug,
open a pull request to the dev branch. Please document any public functions or nontrivial code that
you add.