50 fn parse_sign<'a>(bytes: &'a [u8]) -> (bool, &'a [u8]) {  in parse_sign()
51     match bytes.get(0) {  in parse_sign()
52         Some(&b'+') => (true, &bytes[1..]),  in parse_sign()
53         Some(&b'-') => (false, &bytes[1..]),  in parse_sign()
54         _ => (true, bytes),  in parse_sign()
103 fn ltrim_zero<'a>(bytes: &'a [u8]) -> &'a [u8] {  in ltrim_zero()
104     let count = bytes.iter().take_while(|&&si| si == b'0').count();  in ltrim_zero()
105     &bytes[count..]  in ltrim_zero()
110 fn rtrim_zero<'a>(bytes: &'a [u8]) -> &'a [u8] {  in rtrim_zero()
111     let count = bytes.iter().rev().take_while(|&&si| si == b'0').count();  in rtrim_zero()
112     let index = bytes.len() - count;  in rtrim_zero()
113     &bytes[..index]  in rtrim_zero()
151 fn parse_float<'a, F>(bytes: &'a [u8]) -> (F, &'a [u8])  in parse_float()
156     let (is_positive, bytes) = parse_sign(bytes);  in parse_float()
166     let (integer_slc, bytes) = consume_digits(bytes);  in parse_float()
167     let (fraction_slc, bytes) = match bytes.first() {  in parse_float()
168         Some(&b'.') => consume_digits(&bytes[1..]),  in parse_float()
169         _ => (&bytes[..0], bytes),  in parse_float()
171     let (exponent, bytes) = match bytes.first() {  in parse_float()
174             let (is_positive, bytes) = parse_sign(&bytes[1..]);  in parse_float()
175             let (exponent, bytes) = consume_digits(bytes);  in parse_float()
176             (parse_exponent(exponent, is_positive), bytes)  in parse_float()
178         _ => (0, bytes),  in parse_float()
203     (float, bytes)  in parse_float()