diff --git a/datatypes.py b/datatypes.py
index a44d443..05996a2 100644
--- a/datatypes.py
+++ b/datatypes.py
@@ -1,6 +1,7 @@
 from dataclasses import dataclass
 from enum import auto, Enum
 from typing import Any
+import re
 
 
 class Datatype(Enum):
@@ -40,11 +41,15 @@ class Variable:
 
 NONE_TYPE = Variable(None, Datatype.NONE, None)
 
+STR_MATCH_BEGIN = re.compile(r"^\"")
+STR_MATCH_END = re.compile(r"\"$")
+VAR_ASSIGN_TOKEN = re.compile(r"[A-Za-z]+ ?= ?")
+
 VAR_MATCH = {
-    r"null": Datatype.NULL,
-    r"\/\/.+": Datatype.COMMENT,
-    r"\".+\"": Datatype.STRING,
-    r"-?\d+\.?\d{0,}?\+\d+\.?\d{0,}?i": Datatype.COMPLEX,
-    r"-?\d+\.\d{0,}": Datatype.FLOAT,
-    r"-?\d+": Datatype.INTEGER,
+    re.compile(r"null"): Datatype.NULL,
+    re.compile(r"\/\/.+"): Datatype.COMMENT,
+    re.compile(r"\".+\""): Datatype.STRING,
+    re.compile(r"-?\d+\.?\d{0,}?\+\d+\.?\d{0,}?i"): Datatype.COMPLEX,
+    re.compile(r"-?\d+\.\d{0,}"): Datatype.FLOAT,
+    re.compile(r"-?\d+"): Datatype.INTEGER,
 }