Culture invariant name validation

Author: mhoeger

src/WebJobs.Script.WebHost/Controllers/FunctionsController.cs

@@ -34,7 +34,7 @@ public class FunctionsController : Controller
         private readonly IWebFunctionsManager _functionsManager;
         private readonly IWebJobsRouter _webJobsRouter;
         private readonly ILogger _logger;
-        private static readonly Regex FunctionNameValidationRegex = new Regex(@"^[a-z][a-z0-9_\-]{0,127}$(?<!^host$)", RegexOptions.Compiled | RegexOptions.IgnoreCase);
+        private static readonly Regex FunctionNameValidationRegex = new Regex(@"^[a-z][a-z0-9_\-]{0,127}$(?<!^host$)", RegexOptions.Compiled | RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);
 
         public FunctionsController(IWebFunctionsManager functionsManager, IWebJobsRouter webJobsRouter, ILoggerFactory loggerFactory)
         {

src/WebJobs.Script/Host/FunctionMetadataManager.cs

@@ -21,7 +21,7 @@ namespace Microsoft.Azure.WebJobs.Script
 {
     public class FunctionMetadataManager : IFunctionMetadataManager
     {
-        private static readonly Regex FunctionNameValidationRegex = new Regex(@"^[a-z][a-z0-9_\-]{0,127}$(?<!^host$)", RegexOptions.Compiled | RegexOptions.IgnoreCase);
+        private static readonly Regex FunctionNameValidationRegex = new Regex(@"^[a-z][a-z0-9_\-]{0,127}$(?<!^host$)", RegexOptions.Compiled | RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);
         private readonly Dictionary<string, ICollection<string>> _functionErrors = new Dictionary<string, ICollection<string>>();
         private readonly Lazy<ImmutableArray<FunctionMetadata>> _metadata;
         private readonly IEnumerable<WorkerConfig> _workerConfigs;