From c33c34a3eb5b08c5b63a852a5ec7102445fb9aaa Mon Sep 17 00:00:00 2001
From: Abdul Malik Ikhsan <samsonasik@gmail.com>
Date: Fri, 13 Nov 2026 13:54:01 +0700
Subject: [PATCH] fix: Allow xml-model processing instruction in
 Psr1PhpTagsRule

---
 src/Util/InlineHtmlOpeningTagMatcher.php    | 2 +-
 tests/Analyser/FileAnalysisProviderTest.php | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Util/InlineHtmlOpeningTagMatcher.php b/src/Util/InlineHtmlOpeningTagMatcher.php
index 939b366c..05f4c480 100644
--- a/src/Util/InlineHtmlOpeningTagMatcher.php
+++ b/src/Util/InlineHtmlOpeningTagMatcher.php
@@ -11,7 +11,7 @@
 
 final class InlineHtmlOpeningTagMatcher
 {
-    private const ALLOWED_TAGS = 'php|xml|xml\-stylesheet';
+    private const ALLOWED_TAGS = 'php|xml|xml-stylesheet|xml-model';
 
     public static function invalidInlineHtmlTagOffset(string $text, int $offset = 0): ?int
     {
diff --git a/tests/Analyser/FileAnalysisProviderTest.php b/tests/Analyser/FileAnalysisProviderTest.php
index 6520b791..635d6221 100644
--- a/tests/Analyser/FileAnalysisProviderTest.php
+++ b/tests/Analyser/FileAnalysisProviderTest.php
@@ -309,6 +309,8 @@ public static function lightweightAnalysisProvider(): iterable
         yield 'echo tag' => ['<?= "echo";', false, true, null];
         yield 'XML declaration' => ['<?xml version="1.0"?>', false, true, null];
         yield 'XML stylesheet' => ['<?xml-stylesheet href="style.xsl"?>', false, true, null];
+        yield 'XML model' => ['<?xml-model href="schema.rng"?>', false, true, null];
+        yield 'XML model lookalike' => ['<?xml-models href="schema.rng"?>', false, true, 1];
         yield 'arbitrary XML processing instruction' => ['<?xml-custom value="x"?>', false, true, 1];
         yield 'plain text' => ['plain text', false, true, null];
     }