Trait cssparser::ColorParser

pub trait ColorParser<'i> {
    type Output: FromParsedColor;
    type Error: 'i;

    // Provided methods
    fn parse_angle_or_number<'t>(
        &self,
        input: &mut Parser<'i, 't>
    ) -> Result<AngleOrNumber, ParseError<'i, Self::Error>> { ... }
    fn parse_percentage<'t>(
        &self,
        input: &mut Parser<'i, 't>
    ) -> Result<f32, ParseError<'i, Self::Error>> { ... }
    fn parse_number<'t>(
        &self,
        input: &mut Parser<'i, 't>
    ) -> Result<f32, ParseError<'i, Self::Error>> { ... }
    fn parse_number_or_percentage<'t>(
        &self,
        input: &mut Parser<'i, 't>
    ) -> Result<NumberOrPercentage, ParseError<'i, Self::Error>> { ... }
}

A trait that can be used to hook into how cssparser parses color components, with the intention of implementing more complicated behavior.

For example, this is used by Servo to support calc() in color.

Required Associated Types

type Output: FromParsedColor

The type that the parser will construct on a successful parse.

type Error: 'i

A custom error type that can be returned from the parsing functions.

Provided Methods

fn parse_angle_or_number<'t>( &self, input: &mut Parser<'i, 't> ) -> Result<AngleOrNumber, ParseError<'i, Self::Error>>

Parse an <angle> or <number>.

Returns the result in degrees.

fn parse_percentage<'t>( &self, input: &mut Parser<'i, 't> ) -> Result<f32, ParseError<'i, Self::Error>>

Parse a <percentage> value.

Returns the result in a number from 0.0 to 1.0.

fn parse_number<'t>( &self, input: &mut Parser<'i, 't> ) -> Result<f32, ParseError<'i, Self::Error>>

Parse a <number> value.

fn parse_number_or_percentage<'t>( &self, input: &mut Parser<'i, 't> ) -> Result<NumberOrPercentage, ParseError<'i, Self::Error>>

Parse a <number> value or a <percentage> value.

Implementors