From 1ed2959b628d7b2224a81d54a1ccbb62e4f1e3a8 Mon Sep 17 00:00:00 2001
From: Joshua Ramon Enslin <joshua@museum-digital.de>
Date: Thu, 25 Aug 2022 22:06:15 +0200
Subject: [PATCH] Prevent noda time splitter from suggesting times with months
 beyond 12, days beyond 31

---
 src/NodaTimeSplitter.php       |  6 ++++++
 tests/NodaTimeSplitterTest.php | 10 ++++++++++
 2 files changed, 16 insertions(+)

diff --git a/src/NodaTimeSplitter.php b/src/NodaTimeSplitter.php
index b31304f..b2d6d42 100644
--- a/src/NodaTimeSplitter.php
+++ b/src/NodaTimeSplitter.php
@@ -1086,6 +1086,12 @@ final class NodaTimeSplitter {
         if (!$moda) $moda = NodaTimeSplitter::is_century($datum);
         if (!$moda) $moda = NodaTimeSplitter::is_decade($datum);
 
+        if (!empty($moda)) {
+            if ((int)$moda[2] > 12 || (int)$moda[3] > 31) {
+                return [];
+            }
+        }
+
         return $moda;
 
     }
diff --git a/tests/NodaTimeSplitterTest.php b/tests/NodaTimeSplitterTest.php
index 11de382..826658c 100644
--- a/tests/NodaTimeSplitterTest.php
+++ b/tests/NodaTimeSplitterTest.php
@@ -593,6 +593,16 @@ final class NodaTimeSplitterTest extends TestCase {
         $output = NodaTimeSplitter::attempt_splitting("Januar-Februar");
         self::assertEquals($output, []);
 
+        $output = NodaTimeSplitter::attempt_splitting("13.13.2022");
+        self::assertEquals($output, []);
+        $output = NodaTimeSplitter::attempt_splitting("2022-13-13");
+        self::assertEquals($output, []);
+
+        $output = NodaTimeSplitter::attempt_splitting("40.10.2022");
+        self::assertEquals($output, []);
+        $output = NodaTimeSplitter::attempt_splitting("2022-10-40");
+        self::assertEquals($output, []);
+
         # $output = NodaTimeSplitter::attempt_splitting("Nach 1944-1964");
         # self::assertEquals($output, []);