- replaces problematic regex with manual implementation

Signed-off-by: Vincent Biret <vibiret@microsoft.com>

src/Kiota.Builder/Extensions/OpenApiOperationExtensions.cs

@@ -1,16 +1,23 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text.RegularExpressions;
 using Kiota.Builder.Configuration;
 using Microsoft.OpenApi.Models;
 
 namespace Kiota.Builder.Extensions;
 public static partial class OpenApiOperationExtensions
 {
  internal static readonly HashSet<string> SuccessCodes = new(StringComparer.OrdinalIgnoreCase) { "200", "201", "202", "203", "206", "2XX" }; //204 excluded as it won't have a schema
- [GeneratedRegex(@"[^/]+?\+", RegexOptions.IgnoreCase | RegexOptions.Singleline, 100)]
- private static partial Regex vendorSpecificCleanup();
+ private static string vendorSpecificCleanup(string input)
+ {
+ var slashIndex = input.IndexOf('/', StringComparison.OrdinalIgnoreCase);
+ var plusIndex = input.IndexOf('+', StringComparison.OrdinalIgnoreCase);
+ if (slashIndex == -1 || plusIndex == -1)
+ return input;
+ if (plusIndex < slashIndex)
+ return input;
+ return input[0..(slashIndex + 1)] + input[(plusIndex + 1)..];
+ }
  /// <summary>
  /// cleans application/vnd.github.mercy-preview+json to application/json
  /// </summary>
@@ -49,7 +56,7 @@ internal static IEnumerable<OpenApiSchema> GetValidSchemas(this IDictionary<stri
  return source
  .Where(static c => !string.IsNullOrEmpty(c.Key))
  .Select(static c => (Key: c.Key.Split(';', StringSplitOptions.RemoveEmptyEntries)[0], c.Value))
- .Where(c => structuredMimeTypes.Contains(c.Key) || structuredMimeTypes.Contains(vendorSpecificCleanup().Replace(c.Key, string.Empty)))
+ .Where(c => structuredMimeTypes.Contains(c.Key) || structuredMimeTypes.Contains(vendorSpecificCleanup(c.Key)))
  .Select(static co => co.Value.Schema)
  .Where(static s => s is not null);
  }