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implement parsing of line_height and border_image_outset to parse plain zero as Number

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This commit is contained in:
Atheed Thameem 2017-01-27 21:09:44 -05:00
parent b38da9b920
commit beeca1213c
4 changed files with 69 additions and 18 deletions
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9
components/style/values/specified/length.rs
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@ -1117,10 +1117,13 @@ pub type LengthOrNumber = Either<Length, Number>;
impl LengthOrNumber {
/// Parse a non-negative LengthOrNumber.
pub fn parse_non_negative(input: &mut Parser) -> Result<Self, ()> {
if let Ok(v) = input.try(Length::parse_non_negative) {
Ok(Either::First(v))
// We try to parse as a Number first because, for cases like LengthOrNumber,
// we want "0" to be parsed as a plain Number rather than a Length (0px); this
// matches the behaviour of all major browsers
if let Ok(v) = input.try(Number::parse_non_negative) {
Ok(Either::Second(v))
} else {
Number::parse_non_negative(input).map(Either::Second)
Length::parse_non_negative(input).map(Either::First)
}
}
}