How to extract a string with a regex

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Hello

I want to extract string with regex my string is <ch.syslogged>firmNb=2&documentNb=36729&type=invoiceDebtor&customerNb=10

and I want one time 36729 one another time 10 and one another time invoiceDebtor

can you help me ?

thanks

Hello, I want to extract string with regex my string is <ch.syslogged>firmNb=2&documentNb=36729&type=invoiceDebtor&customerNb=10

and I want one time 36729 one another time 10 and one another time invoiceDebtor

can you help me ?

What I have tried:

I try this
.*documentNb=(.*)&type(.*)
but i retrieve the all string and I only want the group 1

Posted 17-Jan-23 3:14am

William White 2023

Updated 17-Jan-23 3:29am

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2023-01-17T03:29:00

Try this:

C#

private void MyButton_Click(object sender, EventArgs e)
    {
    string inp = "< ch.syslogged > firmNb = 2 & documentNb = 36729 & type = invoiceDebtor & customerNb = 10";
    string pat = ".*documentNb\\s*=\\s*(?<docNb>\\d+).*?customerNb\\s*=\\s*(?<custNb>\\d+)";
    Match m = Regex.Match(inp, pat);
    if (m.Success)
        {
        Console.WriteLine($"{m.Groups["docNb"]}:{m.Groups["custNb"]}");
        }
    }

If you are going to use regular expressions, you need a helper tool. Get a copy of Expresso[^] - it's free, and it examines and generates Regular expressions.

How to extract a string with a regex

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How to extract a string with a regex

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