Update app.py

app.py

@@ -31,11 +31,15 @@ def draw_graph(G, pos=None, title="Graph Visualization"):
     nx.draw(G, pos=pos, with_labels=True, node_color='lightblue', node_size=500, font_size=10, font_weight='bold')
     st.pyplot(plt)
 
-import streamlit as st
-import networkx as nx
-import matplotlib.pyplot as plt
-from sympy.logic.boolalg import Or, And, Not
-from sympy import symbols  # Import symbols from sympy
+# Define custom operators for logical OR, AND, and NOT
+def custom_or(a, b):
+    return Or(a, b)
+
+def custom_and(a, b):
+    return And(a, b)
+
+def custom_not(a):
+    return Not(a)
 
 # Function to convert the circuit to an equivalent formula.
 def circuit_to_formula(circuit):
@@ -154,7 +158,7 @@ def algorithms_circuits():
         st.write("### Create Your Own Circuit")
 
         # Text input for the Boolean expression
-        boolean_expression = st.text_input("Enter a Boolean expression (e.g., ((x ∨ y) ∧ (y ∨ ¬(z)))):")
+        boolean_expression = st.text_input("Enter a Boolean expression (e.g., ((x or y) and (y or not(z)))):")
 
         # Generate button
         if st.button("Generate Circuit"):
@@ -163,9 +167,12 @@ def algorithms_circuits():
                     # Define symbols
                     x, y, z = symbols('x y z')
                     
+                    # Replace the custom characters with logical operators
+                    boolean_expression = boolean_expression.replace("∨", " or ").replace("∧", " and ").replace("¬", " not ")
+                    
                     # Use eval to parse the input expression and replace symbols
                     expr = eval(boolean_expression, {}, {
-                        "Or": Or, "And": And, "Not": Not, "x": x, "y": y, "z": z})
+                        "or": custom_or, "and": custom_and, "not": custom_not, "x": x, "y": y, "z": z})
 
                     # Convert the formula to a circuit
                     circuit = formula_to_circuit(expr)