Refactor tokenizer: remove colon, add colon as duration separator to note and create TokenType.TYPE

smnp/token/type.py

@@ -1,23 +1,24 @@
-from enum import Enum
+from enum import Enum, auto
+
 
 class TokenType(Enum):
-    OPEN_PAREN = 1
-    CLOSE_PAREN = 2
-    ASTERISK = 3
-    STRING = 4
-    IDENTIFIER = 5
-    COMMA = 6
-    INTEGER = 7
-    OPEN_BRACKET = 8
-    CLOSE_BRACKET = 9
-    ASSIGN = 10
-    COLON = 11
-    NOTE = 12
-    COMMENT = 13
-    PERCENT = 14
-    MINUS = 15
-    FUNCTION = 16
-    RETURN = 17    
-    DOT = 18
-    OPEN_SQUARE = 19
-    CLOSE_SQUARE = 20
+    OPEN_PAREN = auto()
+    CLOSE_PAREN = auto()
+    ASTERISK = auto()
+    STRING = auto()
+    IDENTIFIER = auto()
+    COMMA = auto()
+    INTEGER = auto()
+    OPEN_BRACKET = auto()
+    CLOSE_BRACKET = auto()
+    ASSIGN = auto()
+    NOTE = auto()
+    COMMENT = auto()
+    PERCENT = auto()
+    MINUS = auto()
+    FUNCTION = auto()
+    RETURN = auto()
+    DOT = auto()
+    OPEN_SQUARE = auto()
+    CLOSE_SQUARE = auto()
+    TYPE = auto()