UUID regex C#
UUID is a 128-bit label used for identifications in computer systems.
UUID regex
Below is a simple UUID regular expression that will work most of the time:
new Regex("^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$")
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Example code in C#:
using System.Text.RegularExpressions;
using System.Linq;
using System;
public class Program
{
public static void Main()
{
// Validate UUID
Regex validateUUIDRegex = new Regex("^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$");
Console.WriteLine(validateUUIDRegex.IsMatch("123e4567-e89b-12d3-a456-426614174000")); // prints True
// Extract UUID from a string
Regex extractUUIDRegex = new Regex("[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}");
string [] extracted = extractUUIDRegex.Matches("The UUID 123e4567-e89b-12d3-a456-426614174000 for node Node 01 is not unique.")
.Cast()
.Select(m => m.Value)
.ToArray();
Console.WriteLine(String.Join(",", extracted)); // prints 123e4567-e89b-12d3-a456-426614174000
}
}
