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C# - string replace helper

Posted on 2011-09-22
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Last Modified: 2012-05-12
Hello Experts...

I need help converting a string from one format to another. So, I have a bunch of xml xpath values in a datatable for processing later, for example one looks like this:
/soap:Envelop/soap:Body/ns2:findAllRolesResponse/return[2]/unscheduledWorkTOs[3]/workRangeTo/workRangeStartNumber

What I need is a little help doing a string replace so that the corresponding string looks like this one:

/*[local-name(.)='Envelope'][1]/*[local-name(.)='Body'][1]/*[local-name(.)='findAllRolesResponse'][1]/*[local-name(.)='return'][2]/*[local-name(.)='unscheduledWorkTOs'][3]/*[local-name(.)='workRangeTo'][1]/*[local-name(.)='workRangeStartNumber'][1]

I can get the first of the the string replaced using StringBuilder Replace...see attached code.

Just need help crawling through the rest of the string to change it as well.


        Any help is much appreciated.
Thanks!

static void Main(string[] args)
{
   string s = "/soap:Envelop/soap:Body/ns2:findAllRolesResponse/return[2]/unscheduledWorkTOs[3]/workRangeTo/workRangeStartNumber";

   // A
   // Create new StringBuilder from string
   StringBuilder b = new StringBuilder(s);
   Console.WriteLine(b);

   // B
   // Replace the first part
   b.Replace("/soap:Envelop/soap:Body/ns2:", "/*[local-name(.)='Envelope'][1]/*[local-name(.)='Body'][1]/*[local-name(.)='");
   Console.WriteLine(b);

}

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Question by:j420exe1
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3 Comments
 
LVL 33

Accepted Solution

by:
Todd Gerbert earned 500 total points
ID: 36584929
Use String.Split() to break the original string, on the '/' character, into an array of strings.  Loop through the array and remove everything up to and including the first colon - then append the result of that operation to the StringBuilder with the additional /*[local-name(.)='blah blah'][1] stuff.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

class Program
{
	static void Main(string[] args)
	{
		string testString = "/soap:Envelop/soap:Body/ns2:findAllRolesResponse/return[2]/unscheduledWorkTOs[3]/workRangeTo/workRangeStartNumber";
		StringBuilder output = new StringBuilder();

		// Split string on '/'
		string[] parts = testString.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);

		// Loop through each part
		foreach (string part in parts)
		{
			// Remove everything up to and including the first colon
			string temp = part.Substring(part.IndexOf(':') + 1);

			// Append /*[local-name(.)='<part here>'[1] to the string builder
			output.AppendFormat("/*[local-name(.)='{0}'[1]", temp);
		}

		Console.WriteLine("Input:");
		Console.WriteLine(testString);
		Console.WriteLine();

		Console.WriteLine("Output:");
		Console.WriteLine(output.ToString());
		Console.WriteLine();

		Console.Write("Press any key to exit...");
		Console.ReadKey();
	}
}

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LVL 33

Expert Comment

by:Todd Gerbert
ID: 36584934
I think my format on line 23 is a little wrong - just change it as-needed.
0
 

Author Closing Comment

by:j420exe1
ID: 36587060
Thanks...that worked and it wasn't as bad as I thought.

I updated line 23:
output.AppendFormat("/*[local-name(.)='{0}'", temp);
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