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C# / .NET - split string with more than 1 space between words

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Created by:
Kelly
214

In this article, we would like to show you how to split a string when we have more than 1 space character between words in C#.

Quick solution:

// using System.Text.RegularExpressions;

String originalString = "How       to split string by  space?";

// split by whitespace regex - " +"
String[] split1 = Regex.Split( originalString, @" +");

// split by regex - " {2,8}" - split string from 2 to 8 spaces
String[] split2 = Regex.Split( originalString, @" {2,8}");

Note: 

The regular expression " +" is equivalent to "[ ]+".

 

1. C# split by space regex - @" +"

Code example: 

using System;
using System.Text.RegularExpressions;

public class Program
{
    public static void Main(string[] args)
    {
        string originalString = "How       to split string by  space?";
        string[] split = Regex.Split(originalString, @" +");

        Console.WriteLine("# Original string: ");
        Console.WriteLine(originalString);
        Console.WriteLine();

        Console.WriteLine("# Split by space string: ");
        int counter = 1;
        foreach (string stringElement in split)
        {
            Console.WriteLine(counter + " - " + stringElement);
            counter++;
        }
    }
}

Output:

# Original string: 
How       to split string by  space?

# Split by space string: 
1 - How
2 - to
3 - split
4 - string
5 - by
6 - space?

2. C# split by regex - @" {2,8}" - split string from 2 to 8 spaces

Code example with explanation in comment:

using System;
using System.Text.RegularExpressions;

public class Program
{
    public static void Main(string[] args)
    {
        string originalString = "How       to split string   by  space?";

        // Regex:
        // [ ]{2,8} - split string from 2 to 8 spaces
        // if there is 1 space - don't split string
        // if there is more then 8 spaces - don't split string
        //

        string[] splittedString = Regex.Split(originalString, @" {2,8}");

        Console.WriteLine("# Original string: ");
        Console.WriteLine(originalString);
        Console.WriteLine();

        Console.WriteLine("# Split by space string: ");
        int counter = 1;
        foreach (string stringElement in splittedString)
        {
            Console.WriteLine(counter + " - " + stringElement);
            counter++;
        }
    }
}

Output:

# Original string:
How       to split string   by  space?

# Split by space string:
1 - How
2 - to split string
3 - by
4 - space?

Cross technology - split string with more than 1 space between words

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