Function dither::color::palette::parse

pub fn parse<T: FromIterator<RGB<u8>>>(s: &str) -> Result<T, Error>

parse a palette, specified as 6-digit hexidecimal RGB values (w/ optional 0x prefix) separated by newlines. lines consisting entirely of whitespace or starting with // are ignored. /// don't forget to include at least two colors (probably including one of WHITE (0xffffff) or BLACK(0xffffff))

let input = "
// BLACK
0x000000
// whitespace lines are ignored
\t\t\t       \t\t\t\t
// RED
0xFF0000
// GREEN
00ff00
";
let want_colors: HashSet<_> = vec![RGB(0, 0, 0), RGB(0xff, 0x00, 0x00), RGB(0x00, 0xff, 0x00)].into_iter().collect();
assert_eq!(want_colors,  palette::parse(input).unwrap());