From 99e0893a9644322e79497bd940110b42cad90ca5 Mon Sep 17 00:00:00 2001
From: Viktor Szakats <commit@vsz.me>
Date: Fri, 11 Jul 2025 18:35:19 +0200
Subject: [PATCH] mdlinkcheck: percent-encode urls before passing to curl

Fixing:
```
check https://codepoints.net/U+00DF
FAIL
docs/URL-SYNTAX.md:199 ERROR links to missing URL https://codepoints.net/U+00DF
```
---
 scripts/mdlinkcheck | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/mdlinkcheck b/scripts/mdlinkcheck
index 5c1f0569d4..06df25d64b 100755
--- a/scripts/mdlinkcheck
+++ b/scripts/mdlinkcheck
@@ -132,6 +132,7 @@ sub checkurl {
     }
 
     print "check $url\n";
+    $url =~ s/([^A-Za-z0-9_.~-])/sprintf("%%%02X", ord($1))/ge;
     my $curlcmd="curl -ILfsm10 --retry 2 --retry-delay 5 -A \"Mozilla/curl.se link-probe\"";
     my @content = `$curlcmd \"$url\"`;
     if(!$content[0]) {