use std::io::IsTerminal;
fn use_color() -> bool {
std::env::var_os("NO_COLOR").is_none() && std::io::stdout().is_terminal()
}
fn paint(s: &str, code: &str) -> String {
if use_color() {
format!("\x1b[{}m{}\x1b[0m", code, s)
} else {
s.to_string()
}
}
pub fn red(s: &str) -> String {
paint(s, "31")
}
pub fn green(s: &str) -> String {
paint(s, "32")
}
pub fn yellow(s: &str) -> String {
paint(s, "33")
}
pub fn cyan(s: &str) -> String {
paint(s, "36")
}