1 files changed, 12 insertions, 16 deletions

diff --git a/include/markdown.php b/include/markdown.php
index b2adcd0d5..d2379e7ed 100644
--- a/include/markdown.php
+++ b/include/markdown.php
@@ -64,6 +64,12 @@ function markdown_to_bb($s, $use_zrl = false, $options = []) {
 	// Escaping the hash tags
 	$s = preg_replace('/\#([^\s\#])/','#$1',$s);
 
+	// Protect mentions from being mangled by the markdown parser
+	$s = preg_replace_callback(
+		'|@\{([^}]+)\}|',
+		fn ($matches) => '@{' . base64_encode($matches[1]) . '}',
+		$s);
+
 	$s = MarkdownExtra::defaultTransform($s);
 
 
@@ -76,26 +82,16 @@ function markdown_to_bb($s, $use_zrl = false, $options = []) {
 		$s = str_replace("\r","",$s);
 	}
 
+	// Restore mentions after markdown conversion
+	$s = preg_replace_callback(
+		'|@\{([^}]+)\}|',
+		fn ($matches) => '@{' . base64_decode($matches[1]) . '}',
+		$s);
+
 	$s = str_replace('#','#',$s);
 
 	$s = html2bbcode($s);
 
-	// $s = bb_code_protect($s);
-
-	// Convert everything that looks like a link to a link
-	if($use_zrl) {
-		if (strpos($s,'[/img]') !== false) {
-			$s = preg_replace_callback("/\[img\](.*?)\[\/img\]/ism", 'use_zrl_cb_img', $s);
-			$s = preg_replace_callback("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", 'use_zrl_cb_img_x', $s);
-		}
-		$s = preg_replace_callback("/([^\]\=\{\/]|^)(https?\:\/\/)([a-zA-Z0-9\pL\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,\@\(\)]+)([\,\.\:\;]\s|$)/ismu", 'use_zrl_cb_link',$s);
-	}
-	else {
-		$s = preg_replace("/([^\]\=\{\/]|^)(https?\:\/\/)([a-zA-Z0-9\pL\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,\@\(\)]+)([\,\.\:\;]\s|$)/ismu", '$1[url=$2$3]$2$3[/url]$4',$s);
-	}
-
-	// $s = bb_code_unprotect($s);
-
 	// remove duplicate adjacent code tags
 	$s = preg_replace("/(\[code\])+(.*?)(\[\/code\])+/ism","[code]$2[/code]", $s);