public void RepeaterTestCase()
		{
			TokenSequence sequence= new TokenSequence();
			
			Token t = new Token("NUMBER");
			t.Text="200.9";
			sequence.Append(t);
			
			t = new Token("ADD");
			t.Text="+";
			sequence.Append(t);
			
			t = new Token("NUMBER");
			t.Text="14";
			sequence.Append(t);
			
			t = new Token("ADD");
			t.Text="+";
			sequence.Append(t);
			
			t = new Token("NUMBER");
			t.Text="28";
			sequence.Append(t);
			
			SyntacticalRule rule = new SyntacticalRule("formula");
			
			SyntacticalExpression exp = new SyntacticalExpression();
			exp.FormatString="{0}{1}";
			
			ExpressionTokenItem eti = new ExpressionTokenItem();
			eti.TokenType = "NUMBER";
			exp.Items.Add(eti);
			
			ExpressionGroupItem group = new ExpressionGroupItem();
			group.Modifier = ExpressionItemModifier.RepeatingNonCompulsory;
			
			eti = new ExpressionTokenItem();
			eti.TokenType = "ADD";
			group.ChildrenItems.Add(eti);
			
			eti = new ExpressionTokenItem();
			eti.TokenType = "NUMBER";
			group.ChildrenItems.Add(eti);
			
			
			group.FormatString=" + {1}";
			exp.Items.Add(group);
			rule.Expressions.Add(exp);
			
			string output;
			bool res = rule.Match(ref sequence, out output);
			
			Assert.IsTrue(res, "Matching wasn't succesfull");
			Assert.AreEqual("200.9 + 14 + 28", output, "Output isn't correct.'");
		}
		public void SumAndMultTestCase()
		{
			TokenSequence sequence= new TokenSequence();
			
			Token t = new Token("NUMBER");
			t.Text="200.9";
			sequence.Append(t);
			
			t = new Token("ADD");
			t.Text="+";
			sequence.Append(t);
			
			t = new Token("NUMBER");
			t.Text="28";
			sequence.Append(t);
			
			t = new Token("MULT");
			t.Text="x";
			sequence.Append(t);
			
			t = new Token("NUMBER");
			t.Text="14";
			sequence.Append(t);			
			
			SyntacticalRulesLibrary.Instance.ClearRules();
			
			SyntacticalRule rule = new SyntacticalRule("multiplicacion");
			SyntacticalRulesLibrary.Instance.AddRule(rule);
			
			SyntacticalExpression exp = new SyntacticalExpression();
			exp.FormatString="{0}{1}";
			
			ExpressionTokenItem eti = new ExpressionTokenItem();
			eti.TokenType = "NUMBER";
			exp.Items.Add(eti);
			
			ExpressionGroupItem group = new ExpressionGroupItem();
			group.Modifier = ExpressionItemModifier.RepeatingNonCompulsory;
			
			eti = new ExpressionTokenItem();
			eti.TokenType = "MULT";
			group.ChildrenItems.Add(eti);
			
			eti = new ExpressionTokenItem();
			eti.TokenType = "NUMBER";
			group.ChildrenItems.Add(eti);
			
			group.FormatString=" x {1}";
			exp.Items.Add(group);
			rule.Expressions.Add(exp);
			
			rule = new SyntacticalRule("formula");
			SyntacticalRulesLibrary.Instance.AddRule(rule);
			
			exp = new SyntacticalExpression();
			exp.FormatString="{0}{1}";
			
			ExpressionRuleCallItem esi = new ExpressionRuleCallItem();
			esi.RuleName = "multiplicacion";
			exp.Items.Add(esi);
			
			group = new ExpressionGroupItem();
			group.Modifier = ExpressionItemModifier.RepeatingNonCompulsory;
			
			eti = new ExpressionTokenItem();
			eti.TokenType = "ADD";
			group.ChildrenItems.Add(eti);
			
			esi = new ExpressionRuleCallItem();
			esi.RuleName = "multiplicacion";
			group.ChildrenItems.Add(esi);
			
			
			group.FormatString=" + {1}";
			exp.Items.Add(group);
			rule.Expressions.Add(exp);
			
			
			
			string output;
			bool res = rule.Match(ref sequence, out output);
			
			Assert.IsTrue(res, "Matching wasn't succesfull");
			Assert.AreEqual("200.9 + 28 x 14", output, "Output isn't correct.'");
		}