Matching version number parts with regular expressions

Question

I\'m trying to match the parts of a version number (Major.Minor.Build.Revision) with C# regular expressions. However, I\'m pretty new to writing Regex and even using Expresso is

Answer 1

Tested in VBScript, this pattern:

^(\d+)(\.\d+)?(\.\d+)?(\.\d+)?$

Will validate all the following True:

• 23
• 23.1
• 23.1.1
• 23.1.1.1

And the following all False:

• 23.11.11.33.11
• 23.43 2.1
• 44.11.2 3
• 3q.4.2.1
• 3.4.
• 4.3.21a