donner::css::AnbValue Struct Reference

An+B microsyntax value, which is parsed by parser::AnbMicrosyntaxParser. More...

#include "donner/css/details/AnbValue.h"

Public Member Functions
int	evaluate (int index) const noexcept
	Evaluate whether the given child index matches this An+B value.
bool	operator== (const AnbValue &other) const noexcept=default
	Equality operator.

Public Attributes
int	a = 0
	The 'a' value in the An+B microsyntax.
int	b = 0
	The 'b' value in the An+B microsyntax.

Friends
std::ostream &	operator<< (std::ostream &os, const AnbValue &value)
	Print to an output stream.

Detailed Description

An+B microsyntax value, which is parsed by parser::AnbMicrosyntaxParser.

For example, the arguments of :nth-child(4n+2) are parsed as an AnbValue with a = 4, and b = 2.

See also

https://www.w3.org/TR/css-syntax-3/#anb-microsyntax

Member Function Documentation

evaluate()

int donner::css::AnbValue::evaluate ( int index ) const

inlinenoexcept

Evaluate whether the given child index matches this An+B value.

For example, if this AnbValue represents 4n+2, then evaluate(2) would return true, but evaluate(3) would return false.

Parameters

index

A 1-based child index; evaluate(1) is the first child. If index is negative, evaluate returns false.

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The documentation for this struct was generated from the following file:

• donner/css/details/AnbValue.h