From 34601492586a77d503dc339cfe3d3632b5e0f68c Mon Sep 17 00:00:00 2001
From: Brychan Dempsey <brychand@hotmail.com>
Date: Thu, 11 Mar 2021 17:18:02 +1300
Subject: [PATCH] Added Set Function

---
 Assignment 1/Program.cs | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/Assignment 1/Program.cs b/Assignment 1/Program.cs
index 35bac08..65f3606 100644
--- a/Assignment 1/Program.cs	
+++ b/Assignment 1/Program.cs	
@@ -180,6 +180,40 @@ namespace Assignment_1
                 return true;
             }
 
+            bool Set(Stream source)
+            {
+                string identifier;
+                long resultPos = FindIdentifier(source, out identifier);
+                if (resultPos < 0)
+                {
+                    // Couldn't match an identifier
+                    // If ID Doesn't exist, we should make it
+                    return false;
+                }
+                source.Position = resultPos;
+                string expression;
+                resultPos = FindExpression(source, out expression);
+                if (resultPos < 0)
+                {
+                    // Couldn't match expression
+                    return false;
+                }
+                if (Symbols.ContainsKey(identifier))
+                {
+                    if (Symbols[identifier].Item2 == VariableFlags.Reserved)
+                    {
+                        Console.WriteLine("Error: Cannot assign to {0} as it is a reserved constant.");
+                        return false;
+                    }
+                    Symbols[identifier] = new Tuple<string, VariableFlags>(expression, Symbols[identifier].Item2);
+                }
+                else
+                {
+                    Symbols.Add(identifier, new Tuple<string, VariableFlags>(expression, VariableFlags.Empty));
+                }
+                return true;
+            }
+
             #endregion
             #region Data Handling
             // Data Handling