added regex for dice rolls

chatCommands.py

@@ -1,5 +1,5 @@
 from typing import Dict
-
+import re
 import random
 
 commands: Dict = {}
@@ -15,17 +15,20 @@ def command(*commandlist):
 
 def handle_command(kwargs):
     c = kwargs['message'].split()[0]
+    params = kwargs['message'].replace(c, '').strip()
 
     if c in commands:
-        commands[c](kwargs)
+        commands[c](kwargs, params)
     else:
-        error_response(kwargs)
+        error_response(kwargs, params)
 
 
 @command('/roll')
-def custom_roll(kwargs):
-    print(f'/roll received {kwargs}')
+def custom_roll(kwargs, params):
+    pattern = re.compile('(?P<dice_num>(?:\+|\-)?\d+)(?i:d)(?P<dice_val>\d+)(?P<maths>(?:(?:\+|\-)\d+)*(?!(?i:d)))')
+    rolls = re.findall(pattern, params)
+    print(f'/roll received {kwargs}. Roll parameters: {params}. Rolls recognized: {rolls}')
 
 
-def error_response(kwargs):
+def error_response(kwargs, params):
     print(f'Error, received unknown command: {kwargs}')