How to print Delimiters after splitting string

You could iterate the string chars and parse them thusly:

C#

char[] delimiters = new char[] { '+', '-', '*', '/', '(', ')' };
string eq = "abc * (xyz+ pqr) - 10/100";
StringBuilder sb = new StringBuilder();
string chunk = string.Empty;
foreach (char c in eq)
{
     if (delimiters.Contains(c))
     {
           sb.AppendLine(chunk);
           sb.AppendLine(c.ToString());
           chunk = string.Empty;
     }
     else
          chunk += c;
}
sb.AppendLine(chunk);
string result = sb.ToString();

JavaScript

var delimiters = "+-*/()";
var eq = "abc * (xyz+ pqr) - 10/100";
var result = "";
var chunk = "";
        
for (var i = 0; i < eq.length; i++) 
{
     if (delimiters.indexOf(eq.charAt(i)) > -1) 
     {
          result += chunk + "<br/>";
          result += eq.charAt(i) + "<br/>";
          chunk = "";
     }
     else
          chunk += eq.charAt(i);
}
result += chunk;
document.write(result);

To build on David_Wimbley answer, really all he missed is the call to Server.HtmlEncode(TestString)

string Test = "abc * (xyz+ pqr) - 10/100";
 
char[] delimiters = new char[] { '+', '-', '*', '/', '(', ')' };
string[] parts = Test.Split(delimiters, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < parts.Length; i++)
{
     Response.Write(Server.HtmlEncode(parts[i]) + "<br />");
}

Add the "<br />" into your response.writeline call.

I ran it real quick and it prints out vertically not horizontally like you requested.

string Test = "abc * (xyz+ pqr) - 10/100";

char[] delimiters = new char[] { '+', '-', '*', '/', '(', ')' };
string[] parts = Test.Split(delimiters, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < parts.Length; i++)
{
     Response.Write(parts[i] + "<br/>");
}

Please see my comment to the question. I would advice totally alternative way. To understand what I mean, please consider using JavaScript eval function: http://www.w3schools.com/jsref/jsref_eval.asp[^].

Are you getting the idea? Chances are, this is all you need.

For an example of its use, please see source code of this page: http://sakryukov.org/freeware/calculator/[^].

—SA