Fix another edge case in time splitter

phpunit.xml

@@ -1,27 +1,14 @@
 <?xml version="1.0"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd"
-    backupGlobals="false" backupStaticAttributes="false"
-    beStrictAboutChangesToGlobalState="true" beStrictAboutOutputDuringTests="true" beStrictAboutResourceUsageDuringSmallTests="true" beStrictAboutTodoAnnotatedTests="true" beStrictAboutCoversAnnotation="false"
-    bootstrap="tests/bootstrap.php"
-    cacheResult="false"
-    colors="true"
-    convertErrorsToExceptions="true" convertDeprecationsToExceptions="true" convertNoticesToExceptions="true" convertWarningsToExceptions="true"
-    enforceTimeLimit="true"
-    failOnWarning="true"
-    forceCoversAnnotation="false"
-    processIsolation="true"
-    stopOnError="true" stopOnFailure="true" stopOnIncomplete="true" stopOnSkipped="true" stopOnRisky="true"
-    testdox="true"
-    timeoutForSmallTests="1" timeoutForMediumTests="10" timeoutForLargeTests="60"
-    verbose="true">
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.4/phpunit.xsd" backupGlobals="false" beStrictAboutChangesToGlobalState="true" beStrictAboutOutputDuringTests="true" bootstrap="tests/bootstrap.php" cacheResult="false" colors="true" enforceTimeLimit="true" failOnWarning="true" processIsolation="true" stopOnError="true" stopOnFailure="true" stopOnIncomplete="true" stopOnSkipped="true" stopOnRisky="true" testdox="false" timeoutForSmallTests="1" timeoutForMediumTests="10" timeoutForLargeTests="60" cacheDirectory=".phpunit.cache" backupStaticProperties="false" requireCoverageMetadata="false" beStrictAboutCoverageMetadata="false">
   <testsuites>
     <testsuite name="tests">
       <directory>tests/</directory>
     </testsuite>
   </testsuites>
-    <coverage>
+  <coverage/>
+  <source>
     <include>
       <directory suffix=".php">src</directory>
     </include>
-    </coverage>
+  </source>
 </phpunit>

src/NodaTimeSplitter.php

@@ -507,7 +507,7 @@ final class NodaTimeSplitter {
         if (strlen($datum) <= 9) return [];
 
         // The year is only parse-able if it is a four digit year at the start
-        if (self::is_numeric((string)\substr($datum, 0, 4))) {
+        if (self::is_numeric((string)\substr($datum, 0, 4)) && substr($datum, 4, 1) === '.') {
             $year = \substr($datum, 0, 4);
         }
 
@@ -1114,11 +1114,21 @@ final class NodaTimeSplitter {
     public static function attempt_splitting(string $datum):array {
 
         $moda = NodaTimeSplitter::is_timespan($datum);
-        if (!$moda) $moda = NodaTimeSplitter::is_incomplete_date($datum);
-        if (!$moda) $moda = NodaTimeSplitter::is_valid_date($datum);
-        if (!$moda) $moda = NodaTimeSplitter::is_valid_date_hungarian($datum);
-        if (!$moda) $moda = NodaTimeSplitter::is_century($datum);
-        if (!$moda) $moda = NodaTimeSplitter::is_decade($datum);
+        if (!$moda) {
+            $moda = NodaTimeSplitter::is_incomplete_date($datum);
+        }
+        if (!$moda) {
+            $moda = NodaTimeSplitter::is_valid_date($datum);
+        }
+        if (!$moda) {
+            $moda = NodaTimeSplitter::is_valid_date_hungarian($datum);
+        }
+        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) {

tests/NodaTimeSplitterTest.php

@@ -699,6 +699,8 @@ final class NodaTimeSplitterTest extends TestCase {
 
         $output = NodaTimeSplitter::attempt_splitting("65497028c51eb");
         self::assertEquals($output, []);
+        $output = NodaTimeSplitter::attempt_splitting("6552cf08b0196 test tag");
+        self::assertEquals($output, []);
 
         # $output = NodaTimeSplitter::attempt_splitting("Nach 1944-1964");
         # self::assertEquals($output, []);