Function parseKeyword

packages/core/css/parser.ts:149–159

(text: string, start = 0)

const keywordRegEx = /\s*([a-z][\w\-]*)\s*/giy;
function parseKeyword(text: string, start = 0): Parsed<Keyword> {
	keywordRegEx.lastIndex = start;
	const result = keywordRegEx.exec(text);
	if (!result) {
		return null;
	}
	const end = keywordRegEx.lastIndex;
	const value = result[1];

	return { start, end, value };
}

const backgroundRepeatKeywords = new Set(['repeat', 'repeat-x', 'repeat-y', 'no-repeat']);
export function parseRepeat(value: string, start = 0, keyword = parseKeyword(value, start)): Parsed<BackgroundRepeat> {