@node VC Mode Line
@subsection Version Control and the Mode Line
+@cindex VC, mode line indicator
When you visit a file that is under version control, Emacs indicates
-this on the mode line. For example, @samp{RCS-1.3} says that RCS is
-used for that file, and the current version is 1.3.
+this on the mode line. For example, @samp{RCS-1.3} says that the RCS
+back end is used for that file, and the current version of the file is
+1.3.
+
+ The first part of the VC mode-line indicator is the name of the back
+end: @samp{RCS}, @samp{CVS}, @samp{Bzr}, etc. The back-end name is
+followed by a single character and the version of the file.
The character between the back-end name and the revision ID
indicates the version control status of the file. @samp{-} means that
locking is not in use). @samp{:} indicates that the file is locked, or
that it is modified. If the file is locked by some other user (for
instance, @samp{jim}), that is displayed as @samp{RCS:jim:1.3}.
+@samp{@@} means that the file was locally added, but not yet committed
+to the master repository. @samp{!} indicates that the file contains
+conflicts as result of a recent merge operation (@pxref{Merging}), or
+that the file was removed from the version control. Finally, @samp{?}
+means that the file is under version control, but is missing from the
+working tree.
On a graphical display, you can move the mouse over this mode line
indicator to pop up a ``tool-tip'', which displays a more verbose
\"BACKEND-REV\" if the file is up-to-date
\"BACKEND:REV\" if the file is edited (or locked by the calling user)
\"BACKEND:LOCKER:REV\" if the file is locked by somebody else
+ \"BACKEND@REV\" if the file was locally added
+ \"BACKEND!REV\" if the file contains conflicts or was removed
+ \"BACKEND?REV\" if the file is under VC, but is missing
This function assumes that the file is registered."
(let* ((backend-name (symbol-name backend))