use font::{Font, Segment};

let path = "SourceSerifPro-Regular.otf";
let font = Font::open(path).unwrap();
let glyph = font.draw('&').unwrap().unwrap();
for contour in glyph.iter() {
    for segment in contour.iter() {
        match segment {
            &Segment::Linear(..) => { /* … */ },
            &Segment::Quadratic(..) => { /* … */ },
            &Segment::Cubic(..) => { /* … */ },
        }
    }
}