Extract all integer tokens from text.

C#: Enumerate Match objects returned by Regex.Matches with an explicit timeout.

C# Program.cs
using System;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.Json;
using System.Text.RegularExpressions;
using System.Collections.Generic;
using System.Globalization;
using System.Security.Cryptography;
using System.Threading;
using System.Threading.Tasks;

foreach (Match match in Regex.Matches("Order 42 has 7 items", "[0-9]+", RegexOptions.None, TimeSpan.FromSeconds(1)))
    Console.WriteLine(match.Value);

Expected output EXAMPLE

42
7

Details

Use Program.cs in a .NET 8 console project and run dotnet run. Uses only the .NET standard libraries. Enumerate Match objects returned by Regex.Matches with an explicit timeout.

✓ Verified

Tested on Ubuntu 24.04.5 LTS · · 8.0.425 · libc6 2.39-0ubuntu8.9

Test inputs, results and environment

The exact published code ran in a dedicated Linux test container with prepared inputs. Unprivileged snippet process, external networking disabled, read-only root filesystem, and a fresh temporary working directory. Fixtures and output records are isolated from the application database. Testing covers this example and its stated checks, not every input, operating system, or runtime version. The Linux container shares its host's kernel; this is not a native Windows test.

Architecture / host kernel
x86_64 / 6.18.54.1-microsoft-standard-WSL2
Snippet identity / locale
uid=65534, gid=65534 (unprivileged) / C.UTF-8
Interpreter invocation
dotnet build --no-restore && dotnet out/csharp.dll
Container image ID
sha256:32dc2d998158b6554c99b73b533f423696a0f3e31e8cbea9db10b5eee9a2fadd
Code SHA-256
f350823a6a6c71cb48bc51b15d16368555117d72dc657c152bb93e56acfdd88c
Dependencies
libc6 2.39-0ubuntu8.9

Test input setup

These are the prepared inputs used by the test harness. See Details above for the prerequisites and how to run this example.

# No input files required.

Observed standard output

42
7

Exit code: 0. Standard error: empty. Validation: Exact stdout comparison. System-dependent values above are one recorded run.