GNU bug report logs - #42397
[PATCH 00/14] Use outline headings and some cosmetics

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Message #128 received at 42397 <at> debbugs.gnu.org (full text, mbox):

From: Jonas Bernoulli <jonas <at> bernoul.li>
To: 42397 <at> debbugs.gnu.org
Subject: [PATCH v2 02/16] ;
 * lisp/epg.el (epg-signature-to-string): Tiny refactor.
Date: Mon, 10 Aug 2020 23:14:16 +0200

`concat' treats arguments that are nil as if they were empty strings.
We therefore do not have to write (if TEST THEN "") and can just use
(and TEST THEN).
---
 lisp/epg.el | 32 ++++++++++++++------------------
 1 file changed, 14 insertions(+), 18 deletions(-)

diff --git a/lisp/epg.el b/lisp/epg.el
index 65decf3cf5..e53aa8caaa 100644
--- a/lisp/epg.el
+++ b/lisp/epg.el
@@ -412,24 +412,20 @@ epg-signature-to-string
        (revoked-key "Signature made by revoked key ")
        (no-pubkey "No public key for "))
      key-id
-     (if user-id
-	 (concat " "
-		 (if (stringp user-id)
-		     (epg--decode-percent-escape-as-utf-8 user-id)
-		   (epg-decode-dn user-id)))
-       "")
-     (if (epg-signature-validity signature)
-	 (format " (trust %s)"  (epg-signature-validity signature))
-       "")
-     (if (epg-signature-creation-time signature)
-	 (format-time-string " created at %Y-%m-%dT%T%z"
-			     (epg-signature-creation-time signature))
-       "")
-     (if pubkey-algorithm
-	 (concat " using "
-		 (or (cdr (assq pubkey-algorithm epg-pubkey-algorithm-alist))
-		     (format "(unknown algorithm %d)" pubkey-algorithm)))
-       ""))))
+     (and user-id
+	  (concat " "
+		  (if (stringp user-id)
+		      (epg--decode-percent-escape-as-utf-8 user-id)
+		    (epg-decode-dn user-id))))
+     (and (epg-signature-validity signature)
+	  (format " (trust %s)"  (epg-signature-validity signature)))
+     (and (epg-signature-creation-time signature)
+	  (format-time-string " created at %Y-%m-%dT%T%z"
+			      (epg-signature-creation-time signature)))
+     (and pubkey-algorithm
+	  (concat " using "
+		  (or (cdr (assq pubkey-algorithm epg-pubkey-algorithm-alist))
+		      (format "(unknown algorithm %d)" pubkey-algorithm)))))))
 
 (defun epg-verify-result-to-string (verify-result)
   "Convert VERIFY-RESULT to a human readable string."
-- 
2.28.0

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