normalize static method
Implementation
static String? normalize(dynamic expression) {
expression = toStr(expression);
if (expression == null) return null;
//////////////////////////////////////////////
/* Remove Extraneous Unquoted Blank Strings */
//////////////////////////////////////////////
return expression.replaceAll(
RegExp(r"\s+(?=(?:[^\']*[\'][^\']*[\'])*[^\']*$)"), '');
}