From cc972390b24c101f9d1872384cdc790aab128171 Mon Sep 17 00:00:00 2001
From: Caen De Silva <caen@desilva.se>
Date: Wed, 12 Jun 2024 14:45:24 +0200
Subject: [PATCH 1/2] Check if the array key is set before trying to trim it

Fixes "undefined array key" warning when a Markdown file does only have front matter and no body. This will also fix https://github.com/hydephp/develop/issues/1705.
---
 src/ComplexMarkdownParser.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ComplexMarkdownParser.php b/src/ComplexMarkdownParser.php
index a2f37dd..07a67c1 100644
--- a/src/ComplexMarkdownParser.php
+++ b/src/ComplexMarkdownParser.php
@@ -84,7 +84,7 @@ protected function getBody(): string
 
     protected function trimBody(array $body): array
     {
-        if (trim($body[0]) === '') {
+        if (isset($body[0]) && trim($body[0]) === '') {
             unset($body[0]);
         }
 

From 11307776333b2c5b3f9b9b66e89f2b9396c4138b Mon Sep 17 00:00:00 2001
From: Caen De Silva <caen@desilva.se>
Date: Wed, 12 Jun 2024 14:47:30 +0200
Subject: [PATCH 2/2] Test it can parse Markdown file with front matter and no
 Markdown body

---
 .../YamlFrontMatterMarkdownCompatibleParseTest.php | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/tests/YamlFrontMatterMarkdownCompatibleParseTest.php b/tests/YamlFrontMatterMarkdownCompatibleParseTest.php
index 5088d04..62706e7 100644
--- a/tests/YamlFrontMatterMarkdownCompatibleParseTest.php
+++ b/tests/YamlFrontMatterMarkdownCompatibleParseTest.php
@@ -51,7 +51,7 @@ public function it_separates_the_front_matter_from_the_body()
     public function it_leaves_string_without_front_matter_intact()
     {
         $document = YamlFrontMatter::markdownCompatibleParse(
-            "Lorem ipsum."
+            'Lorem ipsum.'
         );
 
         $this->assertInstanceOf(Document::class, $document);
@@ -97,4 +97,16 @@ public function it_can_parse_a_string_with_windows_line_endings()
         $this->assertEquals(['foo' => 'bar'], $document->matter());
         $this->assertStringContainsString('Lorem ipsum.', $document->body());
     }
+
+    /** @test */
+    public function it_can_parse_markdown_file_with_front_matter_and_no_markdown_body()
+    {
+        $document = YamlFrontMatter::markdownCompatibleParse(
+            "---\nfoo: bar\n---"
+        );
+
+        $this->assertInstanceOf(Document::class, $document);
+        $this->assertEquals(['foo' => 'bar'], $document->matter());
+        $this->assertEmpty($document->body());
+    }
 }