Enable wildcard search in terms list (missing file).

src/core/Rsdo.Concordancer.Services/Services/LemmatizationService/WildcardLemmatizationService.cs

@@ -0,0 +1,38 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.EntityFrameworkCore;
+using Rsdo.Concordancer.Core.Extensions;
+using Rsdo.Concordancer.Services.Framework.DbContext;
+
+namespace Rsdo.Concordancer.Services.Services.LemmatizationService;
+
+public class WildcardLemmatizationService : SimpleLemmatizationService
+{
+    private readonly MasterDbContext dbContext;
+
+    public WildcardLemmatizationService(MasterDbContext dbContext)
+        : base(dbContext)
+    {
+        this.dbContext = dbContext;
+    }
+
+    public override async Task<List<string>> GetLemmas(string form)
+    {
+        if (!form.IsWildcardSearch())
+        {
+            return await base.GetLemmas(form);
+        }
+
+        var lemmas = await dbContext.LemmaFormPair.Where(f => EF.Functions.Like(f.Form.ToLower(), form.Replace("*", "%").Replace("?", "_").ToLower()))
+            .Select(f => f.Lemma)
+            .Distinct()
+            .ToListAsync();
+        if (lemmas.IsNullOrEmpty())
+        {
+            lemmas.Add(form);
+        }
+
+        return lemmas;
+    }
+}