From 89276c5b3e33cd8d4bc10e7fb2f012dc3807b08e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mike=20F=C3=A4hrmann?= <mike_faehrmann@web.de>
Date: Tue, 7 Jan 2025 20:00:26 +0100
Subject: [PATCH] [e621] match 'tag' search URLs with empty tag (#6783)

---
 gallery_dl/extractor/e621.py | 2 +-
 test/results/e621.py         | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/gallery_dl/extractor/e621.py b/gallery_dl/extractor/e621.py
index 4a6624d0..33e6ba8e 100644
--- a/gallery_dl/extractor/e621.py
+++ b/gallery_dl/extractor/e621.py
@@ -90,7 +90,7 @@ BASE_PATTERN = E621Extractor.update({
 
 class E621TagExtractor(E621Extractor, danbooru.DanbooruTagExtractor):
     """Extractor for e621 posts from tag searches"""
-    pattern = BASE_PATTERN + r"/posts?(?:\?.*?tags=|/index/\d+/)([^&#]+)"
+    pattern = BASE_PATTERN + r"/posts?(?:\?[^#]*?tags=|/index/\d+/)([^&#]*)"
     example = "https://e621.net/posts?tags=TAG"
 
 
diff --git a/test/results/e621.py b/test/results/e621.py
index b49a9973..b4b431b4 100644
--- a/test/results/e621.py
+++ b/test/results/e621.py
@@ -29,6 +29,12 @@ __tests__ = (
     "#class"   : e621.E621TagExtractor,
 },
 
+{
+    "#url"     : "https://e621.net/post?tags=",
+    "#category": ("E621", "e621", "tag"),
+    "#class"   : e621.E621TagExtractor,
+},
+
 {
     "#url"     : "https://e621.net/pools/73",
     "#category": ("E621", "e621", "pool"),