GUID regex C#
GUID is an acronym for Globally Unique Identifier and used for resource identification. The term is generally used instead of UUID when working with Microsoft technologies.
GUID regex
Below is a simple regular expression to match a guide in a given string:
new Regex("^(?:\\{{0,1}(?:[0-9a-fA-F]){8}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){12}\\}{0,1})$")
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Example code in C#:
using System.Text.RegularExpressions;
using System.Linq;
using System;
public class Program
{
public static void Main()
{
// Validate GUID
Regex validateGuidRegex = new Regex("^(?:\\{{0,1}(?:[0-9a-fA-F]){8}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){12}\\}{0,1})$");
Console.WriteLine(validateGuidRegex.IsMatch("{51d52cf1-83c9-4f02-b117-703ecb728b74}")); // prints True
// Extract GUID from a string
Regex extractGuidRegex = new Regex("(?:\\{{0,1}(?:[0-9a-fA-F]){8}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){4}-(?:[0-9a-fA-F]){12}\\}{0,1})");
string [] extracted = extractGuidRegex.Matches("Resource {51d52cf1-83c9-4f02-b117-703ecb728b74} is down")
.Cast()
.Select(m => m.Value)
.ToArray();
Console.WriteLine(String.Join(",", extracted)); // prints {51d52cf1-83c9-4f02-b117-703ecb728b74}
}
}
