From bb99c4f4c5ccbcd8cafd1a1bef06f62f65d7e6ac Mon Sep 17 00:00:00 2001
From: Davide Grilli <davide.grilli@outlook.com>
Date: Thu, 17 Sep 2026 09:55:06 +0200
Subject: [PATCH] Apply the ModelView# false-positive fix to the production
 scanner

The standalone script already excluded internal saved-view IDs
(ModelView#<numero>) from the referenced-codes heuristic; the app's own
"Trova componenti referenziati" phase used the same regex without the fix.
Ports the lookbehind so both stay consistent, per docs/formato-asm.md.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
---
 .../AssemblyComponentScannerTests.cs               | 14 ++++++++++++++
 CadSearchGui/AssemblyComponentScanner.cs           |  7 ++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/CadSearchGui.Tests/AssemblyComponentScannerTests.cs b/CadSearchGui.Tests/AssemblyComponentScannerTests.cs
index 60b129e..4d292ac 100644
--- a/CadSearchGui.Tests/AssemblyComponentScannerTests.cs
+++ b/CadSearchGui.Tests/AssemblyComponentScannerTests.cs
@@ -53,6 +53,20 @@ public class AssemblyComponentScannerTests
         finally { File.Delete(percorso); }
     }
 
+    [Fact]
+    public void Scarta_id_di_viste_salvate_ModelView()
+    {
+        // Visto su 9044207061.asm: "ModelView#1073741828" compare più volte ma è un ID
+        // interno di vista salvata, non un codice componente.
+        string percorso = ScriviAsmFinto("x ModelView#1073741828 y ModelView#1073741828 z");
+        try
+        {
+            var codici = AssemblyComponentScanner.EstraiCodiciReferenziati(percorso);
+            Assert.DoesNotContain("1073741828", codici);
+        }
+        finally { File.Delete(percorso); }
+    }
+
     [Fact]
     public void File_inesistente_lancia_eccezione_IO() =>
         Assert.Throws<DirectoryNotFoundException>(() =>
diff --git a/CadSearchGui/AssemblyComponentScanner.cs b/CadSearchGui/AssemblyComponentScanner.cs
index 402ec9e..696a7f5 100644
--- a/CadSearchGui/AssemblyComponentScanner.cs
+++ b/CadSearchGui/AssemblyComponentScanner.cs
@@ -16,10 +16,15 @@ namespace CadSearchGui;
 /// riferimenti veri compaiono più volte nel file (una volta per feature/placement),
 /// mentre il rumore binario casuale che assomiglia a un codice compare quasi sempre
 /// una sola volta. Si scartano quindi i candidati con una sola occorrenza.
+///
+/// Falso positivo noto ed escluso: gli ID interni di viste salvate, nel formato
+/// "ModelView#&lt;numero&gt;", hanno la stessa forma di un codice (8-12 cifre) e
+/// compaiono più volte come un riferimento vero. Vedi docs/formato-asm.md.
 /// </summary>
 static class AssemblyComponentScanner
 {
-    private static readonly Regex CodiceRegex = new(@"\b\d{8,12}(?:_[A-Za-z]\d{2,4}|[A-Za-z]{0,2})\b", RegexOptions.Compiled);
+    private static readonly Regex CodiceRegex = new(
+        @"(?<!ModelView#)\b\d{8,12}(?:_[A-Za-z]\d{2,4}|[A-Za-z]{0,2})\b", RegexOptions.Compiled);
     private const int OccorrenzeMinime = 2;
 
     public static HashSet<string> EstraiCodiciReferenziati(string percorsoAsm)