C# string replace with escape characters

Input argumenets
#to=test@gmail.com #subject="Welcome to" #server=mail.gmail.com #port=8080 #from=from@gmail.com

#to="test@gmail.com" #subject="Welcome" #server="mail.gmail.com" #port="8080" #from="from@gmail.com"

#to=\"test@gmail.com\" #subject=\"Welcome\" #server=\"mail.gmail.com\" #port=\"8080\" #from=\"from@gmail.com\"

Expected input string to application.
#to=\"test@gmail.com\" #subject=\"Welcome\" #server=\"mail.gmail.com\" #port=\"8080\" #from=\"from@gmail.com\"

Application will get Input argumenets in any format of give 3 type, but business will work for only one type of format, so we have to manipulate rest of the 2 types to 3rd type.

Solution:
I am going to write one exe, to manipulate input args.
Open Visual studio
Create new console project: StringEscapeCharacters
Open: Program.cs file

Please find my code...

	using System;
	using System.Collections.Generic;
	using System.Text;
	using System.Net.Mail;
	using System.Net;
	using System.Diagnostics;
	using System.Linq;
	namespace StringEscapeCharacters
	{
	class Program
	{
	static string strToAddress;
	static string strSubject;
	//static string body = " ";
	static string strServer;
	static string strPort;
	static string strFrom;
	static string strInputArgs;
	static string strLogmsg = string.Empty;
	static void Main(string[] args)
	{
	string[] keyStrings = new string[] { "#to", "#subject", "#server", "#port", "#from" };
	foreach (string arg in args)
	{
	strInputArgs += " " + arg;
	//switch start....
	foreach (string s in keyStrings)
	{
	string caseSwitch = "null";
	if (arg.Contains(s))
	{
	caseSwitch = s;
	switch (caseSwitch)
	{
	case "#to":
	strToAddress = arg.Split('=')[1];
	if (strToAddress.IndexOf("\"") != 1)
	{
	strToAddress = strToAddress.Replace("\"", "");
	}
	break;
	case "#subject":
	strSubject = arg.Split('=')[1];
	if (strSubject.IndexOf("\"") != -1)
	{
	strSubject = strSubject.Replace("\"", "");
	}
	break;
	case "#server":
	strServer = arg.Split('=')[1];
	if (strServer.IndexOf("\"") != -1)
	{
	strServer = strServer.Replace("\"", "");
	}
	break;
	case "#port":
	strPort = arg.Split('=')[1];
	if (strPort.IndexOf("\"") != -1)
	{
	strPort = strPort.Replace("\"", "");
	}
	break;
	case "#from":
	strFrom = arg.Split('=')[1];
	if (strFrom.IndexOf("\"") != -1)
	{
	strFrom = strFrom.Replace("\"", "");
	}
	break;
	case "null":
	strLogmsg += DateTime.Now + ": Wrong arg: " + arg + "<br/>";
	break;
	}
	break;
	}
	}
	//Switch end...
	////Using If statment...start
	//if (arg.StartsWith("#to="))
	//{
	// strToAddress = arg.Split('=')[1];
	// if (strToAddress.IndexOf("\"") != 1)
	// {
	// strToAddress = strToAddress.Replace("\"", "");
	// }
	//}
	//else if (arg.StartsWith("#subject="))
	//{
	// strSubject = arg.Split('=')[1];
	// if (strSubject.IndexOf("\"") != -1)
	// {
	// strSubject = strSubject.Replace("\"", "");
	// }
	//}
	//else if (arg.StartsWith("#from="))
	//{
	// strFrom = arg.Split('=')[1];
	// if (strFrom.IndexOf("\"") != -1)
	// {
	// strFrom = strFrom.Replace("\"", "");
	// }
	//}
	//else if (arg.StartsWith("#server="))
	//{
	// strServer = arg.Split('=')[1];
	// if (strServer.IndexOf("\"") != -1)
	// {
	// strServer = strServer.Replace("\"", "");
	// }
	//}
	//else if (arg.StartsWith("#port="))
	//{
	// strPort = arg.Split('=')[1];
	// if (strPort.IndexOf("\"") != -1)
	// {
	// strPort = strPort.Replace("\"", "");
	// }
	//}
	////Using If statment...end
	}
	//This is to add more escape charecters, but right now it is not usefull..
	//string strUpdatedArgs = "#to=\\" + "\"" + strToAddress + "\\\" #subject=\\" + "\"" + strSubject + "\\\" #server=\\" + "\"" + strServer + "\\\" #port=\\" + "\"" + strPort + "\\\" #from=\\" + strFrom + "\\\" ";
	//This is adding escape charecter statically, with out reading args
	//string strUpdatedArgs="#to=\"to@gmail.com\" #subject=\"Welcome to exe\" #server=\"mail.gmail.com\" #port=\"8080\" #from=\"plmuat1@microsoft.com\"";
	//This is adding escape charecters dynamically, by reading args
	string strUpdatedArgs = "#to=" + "\"" + strToAddress + "\" #subject=" + "\"" + strSubject + "\" #server=" + "\"" + strServer + "\" #port=" + "\"" + strPort + "\" #from=" + "\"" + strFrom + "\" ";
	try
	{
	//do business logic...
	strLogmsg += DateTime.Now + ": Actual arg values: " + strInputArgs + "<br/>";
	strLogmsg += DateTime.Now + ": Args after adding escape charecters:" + strUpdatedArgs;
	}
	catch (Exception ex)
	{
	// Log error message
	strLogmsg += DateTime.Now + ": Exception : ";
	strLogmsg += "Message : " + ex.Message;
	strLogmsg += "StackTrace : " + ex.StackTrace;
	}
	System.IO.File.WriteAllText(@"C:\temp\mylog.log", strLogmsg);
	return;
	}
	}
	}

view raw gistfile1.cs hosted with ❤ by GitHub

Now i have to pass arguments to my exe, i can to multiple ways..
1st way: Open solution explorer, right click on project.
Click on: Properties
Click on: Debug
Under Start Options:
Command line arguments: <Enter arguments>
Ex:
#to=test@gmail.com #subject="Welcome to exe" #server=mail.gmail.com #port=8080 #from=from@gmail.com


You will get out put as in the log file:C:\Temp\mylog.log
#to="test@gmail.com" #subject="Welcome to exe" #server="mail.gmail.com" #port="8080" #from="from@gmail.com"

2nd way passing args:
Build the application.
now go to bin/debug folder,
you will see: StringEscapeCharacters.exe
execute this exe from cmd and pass args.
ex: StringEscapeCharacters.exe #to=test@gmail.com #subject="Welcome to exe" #server=mail.gmail.com #port=8080 #from=from@gmail.com