* emacs-lisp/lisp-mnt.el (lm-keywords): Allow multi-line keywords.

(lm-keywords-list): Allow comma-only separator like "foo,bar".
Ignore trailing spaces by omit-nulls to split-string (fixing
regression from Emacs 21 due to the incompatible split-string
change).  (Bug #4928.)

1 files changed, 8 insertions, 4 deletions

diff --git a/lisp/emacs-lisp/lisp-mnt.el b/lisp/emacs-lisp/lisp-mnt.el
index a748835d477..22d79c066c3 100644
--- a/lisp/emacs-lisp/lisp-mnt.el
+++ b/lisp/emacs-lisp/lisp-mnt.el
@@ -445,16 +445,20 @@ This can be found in an RCS or SCCS header."
 	    (match-string-no-properties 1)))))))
 
 (defun lm-keywords (&optional file)
-  "Return the keywords given in file FILE, or current buffer if FILE is nil."
+  "Return the keywords given in file FILE, or current buffer if FILE is nil.
+The return is a `downcase'-ed string, or nil if no keywords
+header.  Multi-line keywords are joined up with a space between
+each line."
   (lm-with-file file
-    (let ((keywords (lm-header "keywords")))
-      (and keywords (downcase keywords)))))
+    (let ((keywords (lm-header-multiline "keywords")))
+      (and keywords
+	   (mapconcat 'downcase keywords " ")))))
 
 (defun lm-keywords-list (&optional file)
   "Return list of keywords given in file FILE."
   (let ((keywords (lm-keywords file)))
     (if keywords
-	(split-string keywords ",?[ \t]"))))
+	(split-string keywords "[, \t\n]+" t))))
 
 (defvar finder-known-keywords)
 (defun lm-keywords-finder-p (&optional file)