Function parseLinearGradient

packages/core/css/parser.ts:510–547

(text: string, start = 0)

const linearGradientStartRegEx = /\s*linear-gradient\s*/gy;
export function parseLinearGradient(text: string, start = 0): Parsed<LinearGradient> {
	linearGradientStartRegEx.lastIndex = start;
	const lgs = linearGradientStartRegEx.exec(text);
	if (!lgs) {
		return null;
	}
	let end = linearGradientStartRegEx.lastIndex;

	let angle = Math.PI;
	const colors: ColorStop[] = [];

	const parsedArgs = parseArgumentsList<Angle | ColorStop>(text, end, (text, start, index) => {
		if (index === 0) {
			// First arg can be gradient direction
			const angleArg = parseAngle(text, start) || parseDirection(text, start);
			if (angleArg) {
				angle = angleArg.value;

				return angleArg;
			}
		}

		const colorStop = parseColorStop(text, start);
		if (colorStop) {
			colors.push(colorStop.value);

			return colorStop;
		}

		return null;
	});
	if (!parsedArgs) {
		return null;
	}
	end = parsedArgs.end;

	return { start, end, value: { angle, colors } };
}

const slashRegEx = /\s*(\/)\s*/gy;
function parseSlash(text: string, start: number): Parsed<'/'> {