use crate::*;
#[allow(clippy::iter_skip_next)]
pub fn bg_color() -> Result<AnsiColor, TlError> {
let s = std::env::var("COLORFGBG").map_err(|_| TlError::NoColorFgBgEnv)?;
parse_colorfgbg(&s)
}
fn parse_colorfgbg(s: &str) -> Result<AnsiColor, TlError> {
let token: Vec<&str> = s.split(';').collect();
let bg = match token.len() {
2 => &token[1],
3 => &token[2],
_ => {
return Err(TlError::WrongFormat(s.to_string()));
}
};
let code = bg.parse()?;
Ok(AnsiColor { code })
}
#[test]
fn test_parse_color_fgbg() {
assert_eq!(parse_colorfgbg("17;45").unwrap(), AnsiColor::new(45));
assert_eq!(parse_colorfgbg("0;default;15").unwrap(), AnsiColor::new(15));
assert!(matches!(
parse_colorfgbg("15").unwrap_err(),
TlError::WrongFormat(_)
));
assert!(matches!(
parse_colorfgbg("15;FF").unwrap_err(),
TlError::ParseInt(_)
));
}