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account for sign in double parsing

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When sign was present during double parsing correctly jump forward the
extra character when parsing fraction and exponent.
This commit is contained in:
Bob 2016-07-28 18:56:14 +01:00
parent 3401361461
commit f3079e8728
2 changed files with 24 additions and 6 deletions
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12
components/style/attr.rs
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@ -92,17 +92,17 @@ pub fn parse_double(string: &str) -> Result<f64, ()> {
let trimmed = string.trim_matches(HTML_SPACE_CHARACTERS);
let mut input = trimmed.chars().peekable();
let (value, divisor) = match input.peek() {
let (value, divisor, chars_skipped) = match input.peek() {
None => return Err(()),
Some(&'-') => {
input.next();
(-1f64, -1f64)
(-1f64, -1f64, 1)
}
Some(&'+') => {
input.next();
(1f64, 1f64)
(1f64, 1f64, 1)
}
_ => (1f64, 1f64)
_ => (1f64, 1f64, 0)
};
let (value, value_digits) = if let Some(&'.') = input.peek() {
@ -112,11 +112,11 @@ pub fn parse_double(string: &str) -> Result<f64, ()> {
(value * read_val.and_then(|result| result.to_f64()).unwrap_or(1f64), read_digits)
};
let input = trimmed.chars().skip(value_digits).peekable();
let input = trimmed.chars().skip(value_digits + chars_skipped).peekable();
let (mut value, fraction_digits) = read_fraction(input, divisor, value);
let input = trimmed.chars().skip(value_digits + fraction_digits).peekable();
let input = trimmed.chars().skip(value_digits + chars_skipped + fraction_digits).peekable();
if let Some(exp) = read_exponent(input) {
value *= 10f64.powi(exp)