(authors-public-domain-files): New variable.

(authors-public-domain-p): New function.
(authors-print): Use it.

1 files changed, 31 insertions, 1 deletions

diff --git a/lisp/emacs-lisp/authors.el b/lisp/emacs-lisp/authors.el
index 9c937e26467..1e5c48323e8 100644
--- a/lisp/emacs-lisp/authors.el
+++ b/lisp/emacs-lisp/authors.el
@@ -99,6 +99,21 @@ matches REGEXP, use ALIAS instead.  The special alias \"ignore\" means
 ignore that author.")
 
 
+(defvar authors-public-domain-files
+  '("auto-show\\.el"
+    "form-d2\\.el"
+    "emerge\\.el"
+    "unused\\.el"
+    "vi\\.el"
+    "feedmail\\.el"
+    "mailpost\\.el"
+    "hanoi\\.el"
+    "meese\\.el"
+    "studly\\.el"
+    "modula2\\.el")
+  "List of regexps matching files for which the FSF doesn't need papers.")
+
+
 (defvar authors-obsolete-files-regexps
   '("vc-\\*\\.el$"
     "spec.txt$"
@@ -366,6 +381,17 @@ TABLE is a hash table to add author information to."
       (kill-buffer buffer))))
 
 
+(defun authors-public-domain-p (file)
+  "Return t if FILE is a file that was put in public domain."
+  (let ((public-domain-p nil)
+        (list authors-public-domain-files))
+    (while (and list (not public-domain-p))
+      (when (string-match (car list) file)
+        (setq public-domain-p t))
+      (setq list (cdr list)))
+    public-domain-p))
+
+
 (defun authors-print (author changes)
   "Insert information about AUTHOR's work on Emacs into the current buffer.
 CHANGES is an alist of entries (FILE ACTION...), as produced by
@@ -376,7 +402,11 @@ CHANGES is an alist of entries (FILE ACTION...), as produced by
       (let ((actions (cdr change))
             (file (car change)))
         (if (memq :wrote actions)
-            (insert author " (wrote) " file "\n")
+            (progn
+              (insert author " (wrote) " file)
+              (when (authors-public-domain-p file)
+                (insert " (public domain)"))
+              (insert "\n"))
           (setq nchanged (1+ nchanged)))))
     (if (> nchanged authors-many-files)
         (insert author " (changed) [more than "