Add a query validity check

The QueryParser will check if all query's extensions are in the form
extension_name(param,...)

Author: na2axl

src/JSONDB/QueryParser.php

@@ -104,7 +104,7 @@ public function parse($query)
 
             $this->notParsedQuery = $query;
 
-            // Getting query parts
+            // Getting query's parts
             $queryParts = explode('.', $this->notParsedQuery);
 
             // Getting the table name
@@ -113,6 +113,13 @@ public function parse($query)
                 throw new Exception('JSONDB Query Parse Error: No table detected in the query.');
             }
 
+            // Checking query's parts validity
+            foreach (array_slice($queryParts, 1) as $part) {
+                if (FALSE === (bool)preg_match('#\w+\(.*\)#', $part)) {
+                    throw new Exception("JSONDB Query Parse Error: There is an error at the extension \"{$part}\".");
+                }
+            }
+
             // Getting the query's main action
             $this->parsedQuery['action'] = preg_replace('#\(.*\)#', '', $queryParts[1]);
             if (!in_array(strtolower($this->parsedQuery['action']), self::$supportedQueries, TRUE)) {