Function parse 

pub fn parse(input: &str) -> Result<TokenAmount>

Parse token amounts as floats with SI prefixed-units.

fn assert_attos(input: &str, attos: u64) {
    let expected = TokenAmount::from_atto(attos);
    let actual = parse(input).unwrap();
    assert_eq!(expected, actual);
}
assert_attos("1a", 1);
assert_attos("1aFIL", 1);
assert_attos("1 femtoFIL", 1000);
assert_attos("1.1 f", 1100);
assert_attos("1.0e3 attofil", 1000);

Known bugs

• 1efil will not parse as an exa (10^18), because we’ll try and parse it as a exponent in the float. Instead use 1 efil.