Function isCssWhitespace

lib/css/CssParser.js:492–497

(cc)

 * @returns {boolean} true when `cc` is CSS whitespace (space/tab/newline/CR/FF)
 */
const isCssWhitespace = (cc) =>
	cc === CC_SPACE ||
	cc === CC_TAB ||
	cc === CC_LINE_FEED ||
	cc === CC_CARRIAGE_RETURN ||
	cc === CC_FORM_FEED;

/**
 * Skip trailing whitespace + at most one newline (CRLF-aware).