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Mathics3 · Sep 28, 2024 · f409eec · f409eec
1 parent ad4331e
commit f409eec
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/mathics/core/pattern.py b/mathics/core/pattern.py
@@ -92,7 +92,9 @@ class BasePattern(ABC):
 
     expr: BaseElement
 
-    # this attribute allows for a faster match algorithm based on sameq
+    # this attribute allows for a faster match algorithm based on sameq.
+    # Probably we should split ExpressionPattern into two different classes,
+    # one for literal patterns and the other for "Regular" ExpressionPatterns.
     isliteral: bool = False
 
     # TODO: In WMA, when a BasePattern is created, the attributes
@@ -459,6 +461,7 @@ def match(
         """Try to match the pattern against an Expression"""
         evaluation.check_stopped()
         if self.isliteral:
+            print(self.expr, "is literal")
             if expression.sameQ(self.expr):
                 # yield vars, None
                 yield_func(vars_dict, None)