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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
//! Specified types for <ratio>.
//!
//! [ratio]: https://drafts.csswg.org/css-values/#ratios
use crate::parser::{Parse, ParserContext};
use crate::values::generics::ratio::Ratio as GenericRatio;
use crate::values::specified::NonNegativeNumber;
use crate::One;
use cssparser::Parser;
use style_traits::ParseError;
/// A specified <ratio> value.
pub type Ratio = GenericRatio<NonNegativeNumber>;
impl Parse for Ratio {
fn parse<'i, 't>(
context: &ParserContext,
input: &mut Parser<'i, 't>,
) -> Result<Self, ParseError<'i>> {
let a = NonNegativeNumber::parse(context, input)?;
let b = match input.try_parse(|input| input.expect_delim('/')) {
Ok(()) => NonNegativeNumber::parse(context, input)?,
_ => One::one(),
};
Ok(GenericRatio(a, b))
}
}
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