using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?m)^(?P<datetime>\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2})(?:\:\s)(?P<log>(.*\s\s.*|.*)+)";
string input = @"2022-03-01T12:04:52: Here is a log message
that spans multiple lines
2022-03-01T12:04:52: This is a single line
2022-03-01T12:04:52: Here is another message
that spans multiple lines
and another
2022-03-01T12:04:52: This is a single line
2022-03-01T12:04:52: This is a single line
2022-03-01T12:04:52: Here is another message
that spans multiple lines
2022-03-01T12:04:52: This is a single line";
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