using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^\[[^\]]+\]\s+\[(?<firstfieldname>[^\]]+)\]\s+\[(?<secondfieldname>[^\]]+)\]\s+\[(?<thirdfieldname>[^\]]+)\]\s+\[(?<fourthfieldname>[^\]]+)\]\s+\[(?<username>[^\]]+)\]\s+(?<message>.+)";
string input = @"[2020-03-29 18:37:51,020] [IG Audit Writer] [INFO ] [IG.AUDIT] [AUD6012] [UserNameHere] EventMessageHere";
RegexOptions options = RegexOptions.Multiline;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx