Add ExpressionWrapper class

Author: tomc128

BooleanExpressionParser/ExpressionWrapper.cs

@@ -0,0 +1,35 @@
+namespace BooleanExpressionParser;
+
+class ExpressionWrapper
+{
+    public string Expression { get; private set; }
+    public string[] VariableOrder { get; private set; }
+
+    public ExpressionWrapper(string input)
+    {
+        input = input.Trim();
+        var parts = input.Split(';');
+        for (int i = 0; i < parts.Length; i++)
+        {
+            parts[i] = parts[i].Trim();
+        }
+
+        if (input.Length == 0) throw new ArgumentException("Expression cannot be empty", nameof(input));
+        if (parts[0].Length == 0) throw new ArgumentException("Expression cannot be empty", nameof(input));
+    
+        Expression = parts[0];
+
+        if (parts.Length > 1 && parts[1].Length != 0)
+        {
+            VariableOrder = parts[1].Split(',');
+            for (int i = 0; i < VariableOrder.Length; i++)
+            {
+                VariableOrder[i] = VariableOrder[i].Trim();
+            }
+        }
+        else {
+            VariableOrder = new string[0];
+        }
+
+    }
+}