From a26c1887ff054b80081d7b9ac9765d07797d464b Mon Sep 17 00:00:00 2001
From: Taneli Hukkinen <3275109+hukkin@users.noreply.github.com>
Date: Fri, 13 Dec 2024 10:53:00 +0200
Subject: [PATCH] fix: prevent autolink parsing in images and links

---
 src/mdformat_gfm/_mdit_gfm_autolink_plugin.py |  4 ++
 tests/data/gfm_autolink.md                    | 51 +++++++++++++++++++
 2 files changed, 55 insertions(+)

diff --git a/src/mdformat_gfm/_mdit_gfm_autolink_plugin.py b/src/mdformat_gfm/_mdit_gfm_autolink_plugin.py
index aa320b4..d877550 100644
--- a/src/mdformat_gfm/_mdit_gfm_autolink_plugin.py
+++ b/src/mdformat_gfm/_mdit_gfm_autolink_plugin.py
@@ -42,6 +42,10 @@ def gfm_autolink(state: StateInline, silent: bool) -> bool:  # noqa: C901
     Returns:
         bool: True if GFM autolink found.
     """
+    # Prevents autolink parsing in link and image labels
+    if state.level > 0:
+        return False
+
     pos = state.pos
     src = state.src
 
diff --git a/tests/data/gfm_autolink.md b/tests/data/gfm_autolink.md
index 93af7b4..5f0594a 100644
--- a/tests/data/gfm_autolink.md
+++ b/tests/data/gfm_autolink.md
@@ -29,6 +29,37 @@ don't touch text in html <a> tags
 <p><a href="https://example.com">https://example.com</a></p>
 .
 
+
+space separated autolink in html <a> tags
+.
+<a href="https://example.fi"> https://example.com </a>
+.
+<p><a href="https://example.fi"> <a href="https://example.com">https://example.com</a> </a></p>
+.
+
+space separated autolink after html </a> tag
+.
+</a> https://example.com
+.
+<p></a> <a href="https://example.com">https://example.com</a></p>
+.
+
+autolink in link after </a> tag
+.
+</a> [t https://example.fi](https://example.com)
+.
+<p></a> <a href="https://example.com">t https://example.fi</a></p>
+.
+
+
+autolink in link after <a> tag
+.
+<a> [t https://example.fi](https://example.com)
+.
+<p><a> <a href="https://example.com">t https://example.fi</a></p>
+.
+
+
 entities inside raw links
 .
 https://example.com/foo&amp;bar
@@ -262,3 +293,23 @@ This doesnt http://example.org/foo.*bar*-*baz
 .
 <p>This doesnt <a href="http://example.org/foo.*bar*-*baz">http://example.org/foo.*bar*-*baz</a></p>
 .
+
+autolink inside link
+.
+[t https://blaa.org](https://www.gaah.fi)
+
+[https://blaa.org](https://www.gaah.fi)
+.
+<p><a href="https://www.gaah.fi">t https://blaa.org</a></p>
+<p><a href="https://www.gaah.fi">https://blaa.org</a></p>
+.
+
+autolink inside image
+.
+![t https://blaa.org](https://www.gaah.fi)
+
+![https://blaa.org](https://www.gaah.fi)
+.
+<p><img src="https://www.gaah.fi" alt="t https://blaa.org" /></p>
+<p><img src="https://www.gaah.fi" alt="https://blaa.org" /></p>
+.