needs refactoring

Project-02/syntax.py

@@ -1,5 +1,3 @@
-# (c) Stephan Diehl, University of Trier, Germany, 2025
-
 class EXPRESSION:
     pp_count = 0
 
@@ -69,7 +67,7 @@ class DECL(EXPRESSION):
         self.body = body
 
     def __str__(self):
-        return f"{self.f_name}(" + ",".join(str(p) for p in self.params) + ") { " + str(self.body) + " }"
+        return f"{self.f_name}({self.params}) {{ {self.body} }}"
 
 class CALL(EXPRESSION):
     def __init__(self, f_name, arguments):
@@ -171,20 +169,4 @@ class WHILE(EXPRESSION):
         self.body = body
 
     def __str__(self):
-        return "while (" + str(self.condition) + ") do { " + str(self.body) + " }"
-
-def pretty_print(clas, indent=0):
-    print(' ' * indent + type(clas).__name__ + ':')
-    indent += 4
-    for k, v in clas.__dict__.items():
-        if isinstance(v, EXPRESSION):
-            pretty_print(v, indent)
-        else:
-            print(' ' * indent + f"{k}: {v}")
-
-def export_dot(ast, filename="ast.dot"):
-    with open(filename, "w") as f:
-        f.write("digraph AST {\n")
-        f.write("  node [shape=box];\n")
-        ast.to_dot(f)
-        f.write("}\n")
+        return "while (" + str(self.condition) + ") do { " + str(self.body) + " }"