parse 0.1.2

Basic parsing from str/bytes. Conversion back to bytes.
Documentation 
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extern crate parse;

fn main() {
    let src = "x:-3.14,\n\
               y:5,\n\
               sha1:9a7270b7e752fcc3f51decbc656270834ed45a39".as_bytes();
    let src = &mut &src[..];

    parse::literal(src, "x:").unwrap();
    let _x = parse::f32(src).unwrap();
    parse::literal(src, ",").unwrap();
    parse::whitespace_if_any(src);

    parse::literal(src, "y:").unwrap();
    let _y = parse::f32(src).unwrap();
    parse::literal(src, ",").unwrap();
    parse::whitespace_if_any(src);

    let mut hash = [0u8; 20];
    parse::literal(src, "sha1:").unwrap();
    parse::hex_string(src, &mut hash[..]).unwrap();

    for &b in &hash[..] {
        print!("{:02x}", b);
    }
    println!("");
}