code: function isNameChar(c, cc) {
  		cc = cc || c.charCodeAt(0);
  		return (
  			(cc >= 97 && cc <= 122 /* a-z */) || 
  			(cc >= 65 && cc <= 90 /* A-Z */) || 
  			/* 
  			Experimental: include cyrillic ranges 
  			since some letters, similar to latin ones, can 
  			accidentally appear in CSS tokens
  			*/
  			(cc >= 1024 && cc <= 1279) || 
  			c === '&' || /* selector placeholder (LESS, SCSS) */
  			c === '_' || 
  			c === '<' || /* comparisons (LESS, SCSS) */
  			c === '>' || 
  			c === '=' || 
  			c === '-'
  		);
  	}
docs: utility helpers