How to cut all unwanted characters in a text?

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Hi everybody,

I am parsing email Ids from body of content of the email. while parsing a body of content having richa@carteworld.com as email Id it is taken 3Aricha@carteworld.com. I dig through the problem and came to know that there is a invisible character which i can't able to find in the body of the content (i.e. there may be character in the body of content which may not be part of the email id but it will in body of content) so it picks up like this. can any one help me out to cut all unwanted charactes in the body of content text.

eager waiting for earliest replies

regard
Kumaran

Posted 20-Jan-10 19:22pm

evergreen501

Updated 20-Jan-10 22:29pm

v2

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Harvey Saayman · Answer 1 · 2010-01-20T19:57:00

If you know what the character(s) is(are) you can try something like this

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            char EvilHiddenChar = (char)3;
            string EmailMessage = string.Format("Hello{0}, this {0}is my {0}E-mail message", EvilHiddenChar);
            Console.WriteLine(EmailMessage);
            EmailMessage = EmailMessage.Replace(EvilHiddenChar.ToString(), String.Empty);
            Console.WriteLine(EmailMessage);
            Console.ReadLine();
        }
    }
}

Hope this helps :cool:

AspDotNetDev · Answer 2 · 2010-01-20T20:03:00

There are various approaches you could take. If you know the characters you want to cut out, you can use string.Split to remove the characters and then string.Concat to recombine the string that you just split. Alternatively, if you only know the characters you want to keep (a-z, 0-9, punctuation, and so on), then you can use a regular expression to find all characters that do not match those characters and you could call Regex.Replace to remove any matches. That would go something like this:

C#

string input = "This is some string where I only want letters and numbers.";
string pattern = "((?![a-z]|[0-9]).)+";
string result = Regex.Replace(input, pattern, string.Empty);

I will leave it to you to construct the exact regular expression you want.

How to cut all unwanted characters in a text?

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