/// <summary>
/// Create XML helper method.
/// </summary>
/// <param name="expressions">The infix expressions to be analyzed and printed to the xml file.</param>
public static void CreateXMLFile(List <InfixExpression> expressions)
{
CompareExpressions compareResults = new CompareExpressions();
try
{
FileStream fs = new FileStream(FILE_PATH, FileMode.Create);//creates new file if none exists, overwrites file where file present
using (StreamWriter s = new StreamWriter(fs, Encoding.UTF8))
{
//pass StreamWriter into the extension methods to build XML document
WriteDocumentStart(s);
WriteStartRootElement(s);
foreach (InfixExpression exp in expressions)
{
string preConvertedExpression = InfixToPrefixConverter.Convert(exp.Expression);
string preEvaluatedResult = ExpressionEvaluation.EvaluatePreFix(preConvertedExpression);
string postConvertedExpression = InfixToPostfixConverter.Convert(exp.Expression);
string postEvaluatedResult = ExpressionEvaluation.EvaluatePostFix(postConvertedExpression);
WriteStartElement(s, "element", 1);
WriteAttribute(s, exp.SNO.ToString(), "sno", 2);
WriteAttribute(s, exp.Expression, "infix", 2);
WriteAttribute(s, preConvertedExpression, "prefix", 2);
WriteAttribute(s, postConvertedExpression, "postfix", 2);
WriteAttribute(s, preEvaluatedResult, "evaluation", 2);
WriteAttribute(s, compareResults.Compare(Convert.ToDouble(preEvaluatedResult), Convert.ToDouble(postEvaluatedResult)) == 0 ? "true" : "false", "comparison", 2);
WriteEndElement(s, "element", 1);
}
WriteEndRootElement(s);
s.Close();
fs.Close();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
static void Main(string[] args)
{
// Set up console width for formatting
Console.WindowWidth = 116;
string underline = new string('═', Console.WindowWidth);
// Parse expressions from CSV file
List <InfixExpression> expressions = CSVFile.CSVDeserialize("../../../Data/Project 2_Info_5101.csv");
/* Prefix */
// Print converted Postfix expressions
Console.WriteLine(underline);
Console.WriteLine("Prefix Expressions:");
Console.WriteLine($"{underline}\n");
foreach (InfixExpression exp in expressions)
{
string convertedExpression = InfixToPrefixConverter.Convert(exp.Expression);
Console.WriteLine($"{exp.SNO}:\t{convertedExpression}");
}
// Print expression results
Console.WriteLine($"\n{underline}");
Console.WriteLine("Prefix Results:");
Console.WriteLine($"{underline}\n");
foreach (InfixExpression exp in expressions)
{
string convertedExpression = InfixToPrefixConverter.Convert(exp.Expression);
string evaluatedResult = ExpressionEvaluation.EvaluatePreFix(convertedExpression);
Console.WriteLine($"{exp.SNO}:\t{evaluatedResult}");
}
/* Postfix */
// Print converted Postfix expressions
Console.WriteLine($"\n{underline}");
Console.WriteLine("Postfix Expressions:");
Console.WriteLine($"{underline}\n");
foreach (InfixExpression exp in expressions)
{
string convertedExpression = InfixToPostfixConverter.Convert(exp.Expression);
Console.WriteLine($"{exp.SNO}:\t{convertedExpression}");
}
// Print expression results
Console.WriteLine($"\n{underline}");
Console.WriteLine("Postfix Results:");
Console.WriteLine($"{underline}\n");
foreach (InfixExpression exp in expressions)
{
string convertedExpression = InfixToPostfixConverter.Convert(exp.Expression);
string evaluatedResult = ExpressionEvaluation.EvaluatePostFix(convertedExpression);
Console.WriteLine($"{exp.SNO}:\t{evaluatedResult}");
}
/* Summary Report*/
// Header
string title = "Summary Report";
Console.WriteLine($"\n{underline}");
Console.WriteLine($"{new string(' ', (Console.WindowWidth-title.Length) / 2)}{title}");
Console.WriteLine($"{underline}\n");
Console.WriteLine("╔═════╦════════════════════════╦══════════════════════╦══════════════════════╦═══════════════╦═══════════════╦═════╗");
Console.WriteLine("║{0,-5}║{1,-24}║{2,-22}║{3,-22}║{4,-15}║{5,-15}║{6,-5}║", "Sno", "Infix", "Prefix", "Postfix", "Prefix Result", "Postfix Result", "Match");
Console.WriteLine("╠═════╬════════════════════════╬══════════════════════╬══════════════════════╬═══════════════╬═══════════════╬═════╣");
//Body
CompareExpressions compareResults = new CompareExpressions();
foreach (InfixExpression exp in expressions)
{
string preConvertedExpression = InfixToPrefixConverter.Convert(exp.Expression);
string preEvaluatedResult = ExpressionEvaluation.EvaluatePreFix(preConvertedExpression);
string postConvertedExpression = InfixToPostfixConverter.Convert(exp.Expression);
string postEvaluatedResult = ExpressionEvaluation.EvaluatePostFix(postConvertedExpression);
Console.WriteLine("║{0,-5}║{1,-24}║{2,-22}║{3,-22}║{4,-15}║{5,-15}║{6,-5}║",
exp.SNO, exp.Expression, preConvertedExpression, postConvertedExpression, preEvaluatedResult, postEvaluatedResult, compareResults.Compare(Convert.ToDouble(preEvaluatedResult), Convert.ToDouble(postEvaluatedResult)) == 0 ? "true" : "false");
}
Console.WriteLine("╚═════╩════════════════════════╩══════════════════════╩══════════════════════╩═══════════════╩═══════════════╩═════╝");
//Create XML file
XMLExtension.CreateXMLFile(expressions);
bool done = false;
do
{
Console.Write("\nWould you like to lauch web browser to view XML output? (y/n): ");
string selection = Console.ReadLine().ToLower();
switch (selection)
{
case ("y"):
XMLExtension.OpenXMLInBrowser();
done = true;
break;
case ("n"):
done = true;
break;
default:
Console.Write("\nInvalid selection. ");
break;
}
} while (!done);
Console.WriteLine("\nThank you, have a nice day!");
}
