From 5ef68783a84d9045ce4e1f4fe95c68ce184a4d21 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Antoine=20Beaupr=C3=A9?= <anarcat@debian.org>
Date: Tue, 18 Jul 2017 16:33:22 -0400
Subject: [PATCH] strip trailing and leading extra dashes

those are introduced if non-word characters are found, and are ugly
---
 beetsplug/lyrics.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/beetsplug/lyrics.py b/beetsplug/lyrics.py
index 84f1bf6c0..8bd96c7cf 100644
--- a/beetsplug/lyrics.py
+++ b/beetsplug/lyrics.py
@@ -236,12 +236,13 @@ def slug(text):
     2. shift everything to lowercase
     3. strip whitespace
     4. replace other non-word characters with dashes
+    5. strip extra dashes
 
     This somewhat duplicates the :func:`Google.slugify` function but
     slugify is not as generic as this one, which can be reused
     elsewhere.
     """
-    return re.sub(r'\W+', '-', unidecode(text).lower().strip())
+    return re.sub(r'\W+', '-', unidecode(text).lower().strip()).strip('-')
 
 
 class Backend(object):