function consumeWord(css, start) {
	  var next = start;
	  var code;
	  do {
	    code = css.charCodeAt(next);
	    if (wordDelimiters[code]) {
	      return next - 1;
	    } else if (code === t.backslash) {
	      next = consumeEscape(css, next) + 1;
	    } else {
	      // All other characters are part of the word
	      next++;
	    }
	  } while (next < css.length);
	  return next - 1;
	}
Returns the last index of the bar css word
@param {string} css The string in which the word begins
@param {number} start The index into the string where word's first letter occurs