Help me with parsing

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hello, I have a text file in the form
111.111.111.111 21/03/2017 21:30:14
111.111.111.111  21/03/2017 21:30:18
111.111.111.111 21/03/2017 21:30:25
111.111.111.111 21/03/2017 21:31:12
111.111.111.111 21/03/2017 21:31:40
111.111.111.111 21/03/2017 21:32:14
111.111.111.111   21/03/2017 21:32:18

 such as you can parse this file and get together the ip address and time instead

What I have tried:

I could parsit only on a separate

Posted 13-Aug-18 8:32am

Tural_m

Updated 13-Aug-18 19:43pm

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Patrice T 13-Aug-18 15:14pm

Try to make sentences.

Tural_m 13-Aug-18 15:39pm

I tried it like this, but so only IP parsit

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace ConsoleApp2
{
class Program
{
static void Main(string[] args)
{
List<string> ls = new List<string>();
using (StreamReader stream = new StreamReader(@"path"))
{
var str = stream.ReadToEnd();
foreach (Match item in Regex.Matches(str, @"\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}"))
{
ls.Add(item.Value);
}
}
foreach (var item in ls)
{
Console.WriteLine(item);
}

}
}
}

Patrice T 13-Aug-18 16:01pm

Use Improve question to update your question.
So that everyone can pay attention to this information.

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OriginalGriff · Accepted Answer · 2018-08-13T19:44:00

Start by working with each line, and use string.Split to break it into the three parts IP, date, and time:

string[] parts = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (parts.Length == 3)
    {
    string IP = parts[0];
    string date = parts[1];
    string time = parts[2];
    ...
    }

Or use a Regex to extract the IP and the DateTime:

public static Regex regex = new Regex(
      "^(?<IP>\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})\\s+(?<Date"+
      ">\\d\\d/\\d\\d/\\d{4})\\s+(?<Time>\\d\\d:\\d\\d:\\d\\d)",
    RegexOptions.Multiline
    | RegexOptions.CultureInvariant
    | RegexOptions.IgnorePatternWhitespace
    | RegexOptions.Compiled
    );
...
    Match m = regex.Match(line);
    if (m.Success)
        {
        string IP = m.Groups["IP"].Value;
        string date = m.Groups["Date"].Value;
        string time = m.Groups["Time"].Value;
        //...
        }

If you are going to play with regular expressions, then get a copy of Expresso[^] - it's free, and it examines and generates Regular expressions.