(tags-add-tables): New variable.

(visit-tags-table-buffer): Use it.
(default-tags-table-function): No longer user var, no longer autoload.

diff --git a/lisp/progmodes/etags.el b/lisp/progmodes/etags.el
index 9d6ec89d036423cd3229839aeb88a7b21162e80b..b8bfaa6301deecfd1338cc77ecf7e498827d643b 100644 (file)
--- a/lisp/progmodes/etags.el
+++ b/lisp/progmodes/etags.el
@@ -42,6 +42,11 @@ To switch to a new list of tags tables, setting this variable is sufficient.
 If you set this variable, do not also set `tags-file-name'.
 Use the `etags' program to make a tags table file.")
 
+(defvar tags-add-tables nil
+  "*Non-nil means always add a new tags table to the current list.
+This eliminates the need to ask the user whether to add a new tags table
+to the current list (as opposed to starting a new list).")
+
 (defvar tags-table-list-pointer nil
   "Pointer into `tags-table-list' where the current state of searching is.
 Might instead point into a list of included tags tables.
@@ -73,10 +78,10 @@ If nil, and the symbol that is the value of `major-mode'
 has a `find-tag-default-function' property (see `put'), that is used.
 Otherwise, `find-tag-default' is used.")
 
-;;;###autoload
 (defvar default-tags-table-function nil
-  "*If non-nil, a function of no arguments to choose a default tags file
-for a particular buffer.")
+  "If non-nil, a function to choose a default tags file for a buffer.
+This function receives no arguments and should return the default
+tags table file to use for the current buffer.")
 
 (defvar tags-location-stack nil
   "List of markers which are locations visited by \\[find-tag].
@@ -478,13 +483,14 @@ Returns t if it visits a tags table, or nil if there are no more in the list."
 
                        ;; Not found in any existing set.
                        (if (and tags-table-list
-                                (y-or-n-p (concat "Add " tags-file-name
-                                                  " to current list"
-                                                  " of tags tables? ")))
+                                (or tags-add-tables
+                                    (y-or-n-p (concat "Add to current list"
+                                                      " of tags tables? "))))
                            ;; Add it to the current list.
                            (setq tags-table-list (cons tags-file-name
                                                        tags-table-list))
                          ;; Make a fresh list, and store the old one.
+                         (message "Starting a new list of tags tables")
                          (or (memq tags-table-list tags-table-set-list)
                              (setq tags-table-set-list
                                    (cons tags-table-list tags-table-set-list)))