Question

How to match a substring within 2 square brackets using RegEx in C#

Answer 1

using System;
using System.Text.RegularExpressions;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        string input = "This is a [sample] string with [multiple] square brackets.";
        var extracted = ExtractBracketedContent(input);

        foreach (var item in extracted) {
            Console.WriteLine(item);
        }
    }

    static List<string> ExtractBracketedContent(string text) {
        string pattern = @"\[(.*?)\]";
        MatchCollection matches = Regex.Matches(text, pattern);
        var result = new List<string>();

        foreach (Match match in matches) {
            result.Add(match.Groups[1].Value);
        }

        return result;
    }
}



/*
run:

sample
multiple

*/

 

70+ SQL courses for beginners and professionals

Answer 2

using System;
using System.Text.RegularExpressions;

class Program
{
    static void Main()
    {
        string input = "This is a [sample] string with square brackets.";
        string pattern = @"\[(.*?)\]";
        
        Regex rgx = new Regex(pattern);
        string match = rgx.Match(input).Groups[1].Value;

        Console.WriteLine(match); 
    }
}



/*
run:

sample

*/

 

70+ SQL courses for beginners and professionals