logic: implemented using regex capture ranges for syntax highlighting rules

* only first capture will be highlighted (-> only use one capture range per regex
* non-capturing braces can be used with start: "(?:" and end: ")"

bin/app/data/syntax_highlighting_rules/python.rules

@@ -17,7 +17,7 @@
 	},
 	{
 		"type" : "quotation",
-		"patterns" : [ "\"([^\"]|\\\\.)+\"", "\"\"[^\"]", "[^\"]\"\"$", "\'([^\']|\\\\.)+\'", "\'\'[^\']", "[^\']\'\'$" ],
+		"patterns" : [  "(?:[^\"]|^)(\"(?:[^\"]|\\\\.)*\")(?:[^\"]|$)", "(?:[^\']|^)(\'(?:[^\']|\\\\.)*\')(?:[^\']|$)" ],
 		"priority" : true
 	},
 	{