From 1b39abfa1c7233dd61dc49a267d7a8531646ba8f Mon Sep 17 00:00:00 2001
From: Bryan Newbold <bnewbold@archive.org>
Date: Sun, 13 Sep 2020 22:12:33 -0700
Subject: util: parse ISSN format with extra spaces

---
 chocula/util.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/chocula/util.py b/chocula/util.py
index ce48ab6..b915e94 100644
--- a/chocula/util.py
+++ b/chocula/util.py
@@ -362,6 +362,7 @@ def test_clean_str():
 
 def clean_issn(s: str) -> Optional[str]:
     s = s.strip().upper()
+    s = s.replace(' ', '')
     if len(s) == 8:
         s = s[:4] + "-" + s[4:]
     if len(s) != 9 or s[4] != "-":
@@ -373,3 +374,4 @@ def test_clean_issn():
     assert clean_issn("1234-5678") == "1234-5678"
     assert clean_issn(" 12345678") == "1234-5678"
     assert clean_issn("123445678") == None
+    assert clean_issn("2249 - 8257") == "2249-8257"
-- 
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