node_modules/stylelint/lib/utils/isSingleLineString.mjs

/**
 * Check if a string is a single line (i.e. does not contain
 * any newline characters).
 *
 * @param {string} input
 * @returns {boolean}
 */
export default function isSingleLineString(input) {
	return !/[\n\r]/.test(input);
}