From 9273aa7e7d1d64e98987174d0f2e7abd875a3cad Mon Sep 17 00:00:00 2001
From: Damien Regad <dregad@mantisbt.org>
Date: Sun, 26 Jan 2025 19:04:02 +0100
Subject: [PATCH 1/3] Fix PHP 8.4 implicit nullability deprecation (take 2)

This re-does @xabbuh's commit 7b307a92373542a10f1265df420d424ea4d51062,
in a PHP >= 5.1 backwards-compatible way.
---
 Parsedown.php | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Parsedown.php b/Parsedown.php
index 1b9d6d5bc..231894a6e 100644
--- a/Parsedown.php
+++ b/Parsedown.php
@@ -712,9 +712,9 @@ protected function blockRule($Line)
     #
     # Setext
 
-    protected function blockSetextHeader($Line, array $Block = null)
+    protected function blockSetextHeader($Line, array $Block = array())
     {
-        if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted']))
+        if (empty($Block) or isset($Block['type']) or isset($Block['interrupted']))
         {
             return;
         }
@@ -850,9 +850,9 @@ protected function blockReference($Line)
     #
     # Table
 
-    protected function blockTable($Line, array $Block = null)
+    protected function blockTable($Line, array $Block = array())
     {
-        if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted']))
+        if (empty($Block) or isset($Block['type']) or isset($Block['interrupted']))
         {
             return;
         }

From e431ecd3a95948c9f212e2a76fdfd5808e99af39 Mon Sep 17 00:00:00 2001
From: Damien Regad <dregad@mantisbt.org>
Date: Mon, 27 Jan 2025 01:59:19 +0100
Subject: [PATCH 2/3] Fix broken CI builds

Changing the $Block parameter's default value from null to array()
caused the PHPUnit tests to fail with "Argument #2 ($Block) must be of
type array, null given".

Initializing $CurrentBlock variable in lines() method to array() instead
of null, and change subsequent tests from isset() to !empty().

Also change blockCode() method signature, which was missed in previous
commit.
---
 Parsedown.php | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Parsedown.php b/Parsedown.php
index 231894a6e..debba4401 100644
--- a/Parsedown.php
+++ b/Parsedown.php
@@ -143,13 +143,13 @@ function setSafeMode($safeMode)
 
     protected function lines(array $lines)
     {
-        $CurrentBlock = null;
+        $CurrentBlock = [];
 
         foreach ($lines as $line)
         {
             if (chop($line) === '')
             {
-                if (isset($CurrentBlock))
+                if (!empty($CurrentBlock))
                 {
                     $CurrentBlock['interrupted'] = true;
                 }
@@ -255,7 +255,7 @@ protected function lines(array $lines)
 
             # ~
 
-            if (isset($CurrentBlock) and ! isset($CurrentBlock['type']) and ! isset($CurrentBlock['interrupted']))
+            if (!empty($CurrentBlock) and ! isset($CurrentBlock['type']) and ! isset($CurrentBlock['interrupted']))
             {
                 $CurrentBlock['element']['text'] .= "\n".$text;
             }
@@ -317,9 +317,9 @@ protected function isBlockCompletable($Type)
     #
     # Code
 
-    protected function blockCode($Line, $Block = null)
+    protected function blockCode($Line, $Block = array())
     {
-        if (isset($Block) and ! isset($Block['type']) and ! isset($Block['interrupted']))
+        if (!empty($Block) and ! isset($Block['type']) and ! isset($Block['interrupted']))
         {
             return;
         }

From f5202399a8381792cab3cdcc1b87955581316569 Mon Sep 17 00:00:00 2001
From: Damien Regad <dregad@mantisbt.org>
Date: Mon, 27 Jan 2025 02:08:29 +0100
Subject: [PATCH 3/3] Short array syntax is only available since PHP 5.4

---
 Parsedown.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Parsedown.php b/Parsedown.php
index debba4401..64e8a1165 100644
--- a/Parsedown.php
+++ b/Parsedown.php
@@ -143,7 +143,7 @@ function setSafeMode($safeMode)
 
     protected function lines(array $lines)
     {
-        $CurrentBlock = [];
+        $CurrentBlock = array();
 
         foreach ($lines as $line)
         {