Using Regex number pattern

Question

Hi want regular expression to check this kind 33.0.123 / 33.build.001 in a single expresion

Iftikar Hussain · Answer

Hi, You can use like this Regex re = new Regex(@"^(33.)(0|build)(.)(\d{3})+$"); if (re.IsMatch(value)) MessageBox.Show("Matched"); else MessageBox.Show("Doesn't Matched"); Example - Matched: 33.0.123,33.0.111,33.0.001,33.build.123,33.build.111,33.build.001 Let me know if you need more details Regards, Iftikar Remember to click "Mark as Answer" on the post, if it helps you.

Vulpes · Answer

Try the following: using System; using System.Text.RegularExpressions; using System.IO; class Program { static void Main() { string text = File.ReadAllText("example2.txt"); string regExp = @"(?s)((\d{2}\.(\d|build)\.\d{3}).*?loading ""(.+?)"".*?loading ""(.+?)"")"; MatchCollection mc = Regex.Matches(text, regExp); foreach(Match m in mc) { Console.WriteLine(m.Groups[2].Value); Console.WriteLine(m.Groups[4].Value); Console.WriteLine(m.Groups[5].Value); Console.WriteLine(); } Console.ReadKey(); } } The output should be: 33.0.123 apple\folder1\folder2 bat\folder3\folder4 33.build.002 apple\folder1\folder2 bat\folder3\folder4 33.0.122 apple\folder1\folder2 bat\folder3\folder4 33.0.121 apple\folder1\folder2 bat\folder3\folder4

suhas setty · Answer

those build no should be read from text file example.txt 33.0.123 loading "apple\folder1\folder2" loading "bat\folder3\folder4" unloaded "cat\fold5\fold6" 33.build.002 loading "apple\folder1\folder2" loading "bat\folder3\folder4" unloaded "cat\fold5\fold6" 33.0.122 loading "apple\folder1\folder2" loading "bat\folder3\folder4" unloaded "cat\fold5\fold6" 33.0.121 loading "apple\folder1\folder2" loading "bat\folder3\folder4" unloaded "cat\fold5\fold6" and i want only loading part

Vulpes · Answer

Try: using System; using System.Text.RegularExpressions; class Test { static void Main() { string text = "33.0.123 / 33.build.001"; string regExp = @"^\d\d\.\d\.\d\d\d / \d\d\.build\.\d\d\d$"; bool isMatch = Regex.IsMatch(text, regExp); Console.WriteLine(isMatch); // True Console.ReadKey(); } }

Using Regex number pattern

Answers (4)