Update PositionCalculator.php

For this SQL :  insert into logs(`id`,`ip`,`status`,`dt`) values ('1','192.168.1.100','1','2016-05-17 14:25:52')   ,  it throw a UnableToCalculatePositionException IN positions/PositionCalculator.php Line 224 . But this SQL can be executed in mysql server. I suggest this type of sql can be calulate as operator OR any other solution.TKS 4 U help .

Author: oohook

src/PHPSQLParser/positions/PositionCalculator.php

@@ -154,7 +154,7 @@ protected function findPositionWithinString($sql, $value, $expr_type) {
             // whitespace, comma, parenthesis, digit or letter, end_of_string
             // an operator should not be surrounded by another operator
 
-            if ($expr_type === 'operator') {
+            if (in_array($expr_type,array('operator','column-list'),true)) {
 
                 $ok = ($before === "" || in_array($before, self::$allowedOnOperator, true))
                     || (strtolower($before) >= 'a' && strtolower($before) <= 'z');