docs: function indent(num, noNewLine) {
  		if (num >= indentStrs.length) { // expand the cached indent strs
  			for (var i = indentStrs.length; i <= num; i++) {
  				indentStrs[i] = indentStrs[i-1] + indentStep;
  			}
  		}
          return noNewLine ? indentStrs[num] : "\n" + indentStrs[num];
      }