(add-change-log-entry): Skip copyright notice

and copying permission notice at start of file, if any.
Make use of terms "entry" and "item" accord with Emacs manual.
Simplify the logic for moving point while entering or creating
an entry and then an item.
(add-change-log-entry-other-window): Doc fix.

diff --git a/lisp/add-log.el b/lisp/add-log.el
index 61a29beda84f014ef2aff39228a9a7fb727862ce..1d175ffe4a3dff9a63fc3ca98ab9f4ac01429ca0 100644 (file)
--- a/lisp/add-log.el
+++ b/lisp/add-log.el
@@ -402,16 +402,23 @@ Optional arg BUFFER-FILE overrides `buffer-file-name'."
 
 ;;;###autoload
 (defun add-change-log-entry (&optional whoami file-name other-window new-entry)
-  "Find change log file and add an entry for today.
+  "Find change log file, and add an entry for today and an item for this file.
 Optional arg WHOAMI (interactive prefix) non-nil means prompt for user
 name and site.
 
-Second arg is FILE-NAME of change log.  If nil, uses `change-log-default-name'.
+Second arg FILE-NAME is file name of the change log.
+If nil, use the value of `change-log-default-name'.
+
 Third arg OTHER-WINDOW non-nil means visit in other window.
+
 Fourth arg NEW-ENTRY non-nil means always create a new entry at the front;
 never append to an existing entry.  Option `add-log-keep-changes-together'
 otherwise affects whether a new entry is created.
 
+The change log file can start with a copyright notice and a copying
+permission notice.  The first blank line indicates the end of these
+notices.
+
 Today's date is calculated according to `change-log-time-zone-rule' if
 non-nil, otherwise in local time."
   (interactive (list current-prefix-arg
@@ -439,8 +446,8 @@ non-nil, otherwise in local time."
         (buffer-file (if buf-file-name (expand-file-name buf-file-name)))
         (file-name (expand-file-name
                     (or file-name (find-change-log file-name buffer-file))))
-        ;; Set ENTRY to the file name to use in the new entry.
-        (entry (add-log-file-name buffer-file file-name))
+        ;; Set ITEM to the file name to use in the new item.
+        (item (add-log-file-name buffer-file file-name))
         bound)
 
     (if (or (and other-window (not (equal file-name buffer-file-name)))
@@ -451,36 +458,47 @@ non-nil, otherwise in local time."
        (change-log-mode))
     (undo-boundary)
     (goto-char (point-min))
+
+    ;; If file starts with a copyright and permission notice, skip them.
+    ;; Assume they end at first blank line.
+    (when (looking-at "Copyright")
+      (search-forward "\n\n")
+      (skip-chars-forward "\n"))
+
+    ;; Advance into first entry if it is usable; else make new one.
     (let ((new-entry (concat (funcall add-log-time-format)
                             "  " add-log-full-name
                             "  <" add-log-mailing-address ">")))
       (if (looking-at (regexp-quote new-entry))
          (forward-line 1)
-       (insert new-entry "\n\n")))
+       (insert new-entry "\n\n")
+       (forward-line -1)))
 
+    ;; Determine where we should stop searching for a usable
+    ;; item to add to, within this entry.
     (setq bound
-         (progn
+         (save-excursion
             (if (looking-at "\n*[^\n* \t]")
                 (skip-chars-forward "\n")
              (if add-log-keep-changes-together
                  (forward-page)        ; page delimits entries for date
                (forward-paragraph)))   ; paragraph delimits entries for file
            (point)))
-    (goto-char (point-min))
-    ;; Now insert the new line for this entry.
+
+    ;; Now insert the new line for this item.
     (cond ((re-search-forward "^\\s *\\*\\s *$" bound t)
-          ;; Put this file name into the existing empty entry.
-          (if entry
-              (insert entry)))
+          ;; Put this file name into the existing empty item.
+          (if item
+              (insert item)))
          ((and (not new-entry)
                (let (case-fold-search)
                  (re-search-forward
-                  (concat (regexp-quote (concat "* " entry))
+                  (concat (regexp-quote (concat "* " item))
                           ;; Don't accept `foo.bar' when
                           ;; looking for `foo':
                           "\\(\\s \\|[(),:]\\)")
                   bound t)))
-          ;; Add to the existing entry for the same file.
+          ;; Add to the existing item for the same file.
           (re-search-forward "^\\s *$\\|^\\s \\*")
           (goto-char (match-beginning 0))
           ;; Delete excess empty lines; make just 2.
@@ -490,8 +508,7 @@ non-nil, otherwise in local time."
           (forward-line -2)
           (indent-relative-maybe))
          (t
-          ;; Make a new entry.
-          (forward-line 1)
+          ;; Make a new item.
           (while (looking-at "\\sW")
             (forward-line 1))
           (while (and (not (eobp)) (looking-at "^\\s *$"))
@@ -500,9 +517,9 @@ non-nil, otherwise in local time."
           (forward-line -2)
           (indent-to left-margin)
           (insert "* ")
-          (if entry (insert entry))))
+          (if item (insert item))))
     ;; Now insert the function name, if we have one.
-    ;; Point is at the entry for this file,
+    ;; Point is at the item for this file,
     ;; either at the end of the line or at the first blank line.
     (if defun
        (progn
@@ -512,8 +529,8 @@ non-nil, otherwise in local time."
                    (beginning-of-line 1)
                    (looking-at "\\s *$"))
            (insert ?\ ))
-         ;; See if the prev function name has a message yet or not
-         ;; If not, merge the two entries.
+         ;; See if the prev function name has a message yet or not.
+         ;; If not, merge the two items.
          (let ((pos (point-marker)))
            (if (and (skip-syntax-backward " ")
                     (skip-chars-backward "):")
@@ -537,13 +554,9 @@ non-nil, otherwise in local time."
 
 ;;;###autoload
 (defun add-change-log-entry-other-window (&optional whoami file-name)
-  "Find change log file in other window and add an entry for today.
-Optional arg WHOAMI (interactive prefix) non-nil means prompt for user
-name and site.
-Second optional arg FILE-NAME is file name of change log.
-If nil, use `change-log-default-name'.
-
-Affected by the same options as `add-change-log-entry'."
+  "Find change log file in other window and add entry and item.
+This is just like `add-change-log-entry' except that it displays
+the change log file in another window."
   (interactive (if current-prefix-arg
                   (list current-prefix-arg
                         (prompt-for-change-log-name))))