From 230edb6d7dcb8f26fabab1b9e58b7e8c3c16910e Mon Sep 17 00:00:00 2001
From: Sam Wilson <sam@samwilson.id.au>
Date: Sun, 27 Aug 2023 10:18:31 +0800
Subject: [PATCH] Escape percent sign in link URLs

---
 src/LinkRenderer.php | 1 +
 tests/data/links.md  | 2 +-
 tests/data/links.tex | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/LinkRenderer.php b/src/LinkRenderer.php
index 3f3a65f..adb54a7 100644
--- a/src/LinkRenderer.php
+++ b/src/LinkRenderer.php
@@ -33,6 +33,7 @@ public function render(Node $node, ChildNodeRendererInterface $childRenderer)
         $replacements = [
             '_' => '\\_',
             '#' => '\#',
+            '%' => '\%',
         ];
         $url          = \str_replace(\array_keys($replacements), $replacements, $node->getUrl());
 
diff --git a/tests/data/links.md b/tests/data/links.md
index e40f783..8811715 100644
--- a/tests/data/links.md
+++ b/tests/data/links.md
@@ -1,6 +1,6 @@
 Link with protocol and fragment: [label](https://example.org/lorem#ipsum).
 
-Relative link: [label](./example.html).
+Relative link: [label](./spaced%20example.html).
 
 Inline URL with angle brackets: <https://example.org>
 
diff --git a/tests/data/links.tex b/tests/data/links.tex
index 77a15d4..54a25cb 100644
--- a/tests/data/links.tex
+++ b/tests/data/links.tex
@@ -1,6 +1,6 @@
 Link with protocol and fragment: label\footnote{\url{https://example.org/lorem\#ipsum}}.
 
-Relative link: label\footnote{\url{./example.html}}.
+Relative link: label\footnote{\url{./spaced\%20example.html}}.
 
 Inline URL with angle brackets: \url{https://example.org}