Terminal capabilities with type-safe getters.
Add this to your Cargo.toml:
[dependencies]
terminfo = "0.1"and this to your crate root:
extern crate terminfo;extern crate terminfo;
use std::io::{self, Write};
use terminfo::{Expand, Database, capability as cap};
fn main() {
let info = Database::from_env().unwrap();
if let Some(cap::MaxColors(n)) = info.get::<cap::MaxColors>() {
println!("The terminal supports {} colors.", n);
}
else {
println!("The terminal does not support colors, what year is this?");
}
if let Some(flash) = info.get::<cap::FlashScreen>() {
io::stdout().write_all(&flash.expand(&[], &mut Default::default()).unwrap()).unwrap();
}
else {
println!("FLASH GORDON!");
}
}For all terminals but windows consoles, this library depends on a non-hashed (for now) terminfo database being present. For example, on Debian derivitives, you should depend on ncurses-term; on Arch Linux, you depend on ncurses; and on MinGW, you should depend on mingw32-terminfo.
Unfortunately, if you're using a non-windows console on Windows (e.g. MinGW, Cygwin, Git Bash), you'll need to set the TERMINFO environment variable to point to the directory containing the terminfo database.