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: 33.0.12333.0.11133.0.00133.build.12333.build.11133.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(); } }