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//! This example demonstrates a minimalist implementation of [`Tabling`](Table) records
//! with struct fields.
//!
//! * This second nested [`Table`] example showcases the [`derive`] approach.
//!
//! * Note how the [`display_with`] attribute macro applies the custom `display_distribution`
//! filter function, which, in this case, applies styles to the final display.
use tabled::{settings::Style, Table, Tabled};
fn main() {
#[rustfmt::skip]
let data = [
Vendor::new("Azure", Dist::new("Windows", None), Dist::new("Manjaro", Some("Arch"))),
Vendor::new("AWS", Dist::new("Debian", None), Dist::new("Arch", None)),
Vendor::new("GCP", Dist::new("Debian", None), Dist::new("Arch", None)),
];
let mut table = Table::new(data);
table.with(Style::modern());
println!("{table}");
}
#[derive(Tabled)]
struct Vendor {
name: String,
#[tabled(display = "display_distribution")]
main_os: Dist,
#[tabled(display = "display_distribution")]
switch_os: Dist,
}
impl Vendor {
fn new(name: &str, main_os: Dist, switch_os: Dist) -> Self {
Self {
name: name.to_string(),
main_os,
switch_os,
}
}
}
fn display_distribution(d: &Dist) -> String {
Table::new([d]).with(Style::extended()).to_string()
}
#[derive(Tabled)]
struct Dist {
name: String,
#[tabled(format("{}", self.based_on.as_deref().unwrap_or_else(|| "Independent")))]
based_on: Option<String>,
}
impl Dist {
fn new(name: &str, based_on: Option<&str>) -> Self {
Self {
name: name.to_string(),
based_on: based_on.map(|s| s.to_string()),
}
}
}
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