Add a little bit of functionality.... in theory it should be able to run.... in theory, not yet tested

SubjectHandler.py

@@ -0,0 +1,46 @@
+import re
+
+
+class SubjectHandler:
+    """
+    class for managing all the sub-functions(nodes)
+    """
+    class Node:
+        """
+        node containing a sub-function
+        """
+        def __init__(self, regex, f):
+            """
+            creating node
+            :param regex: regex checked against subject
+            :param f: function to be called if keyword in subject
+            """
+            self.regex = regex
+            self.func = f
+
+    def __init__(self):
+        self.nodes = []
+
+    def __add__(self, other):
+        """
+        adding node to self
+        :param other: node
+        :return: self with added node
+        """
+        self.nodes.append(other)
+        return self
+
+    def __len__(self):
+        return len(self.nodes)
+
+    def run(self, messages):
+        """
+        running the class and checking if there's a regex match in any node and then running the node
+        :param messages: array of messages, which should be checked
+        :return: -
+        """
+        for message in messages:
+            subject = message[0]
+            for node in self.nodes:
+                if re.match(node.regex, subject):
+                    node.func(message)